# Springer

# TOP: An Official Journal of the Spanish Society of Statistics and Operations Research

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**Current editor:**Justo Puerto

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### 2001, Volume 9, Issue 1

**115-138 Extreme points of discrete location polyhedra***by*Lázaro Cánovas & Alfredo Marín & Mercedes Landete

### 2000, Volume 8, Issue 2

**165-190 The stochastic generalised assignment problem with Bernoulli demands***by*Maria Albareda-Sambola & Elena Fernández**191-213 Generating functions for computing power indices efficiently***by*J. Bilbao & J. Fernández & A. Losada & J. López**215-234 Comparison of α-Condorcet points with median and center locations***by*Clara Rodríguez & José Pérez**235-263 A generalized additive, categorical model in data envelopment analysis***by*Luka Neralić & Richard Wendell**265-285 The generalizedp-Centdian on network***by*Dionisio Brito & José Moreno Pérez**287-309 Local optimality subsets and global optimization a prospective approach***by*Alain Quilliot**311-326 Rationalizations of choice functions***by*Ma Isabel Rodríguez-Galiano**327-337 A note for tightening 0–1 models***by*Laureano Escudero & Susana Muñoz

### 2000, Volume 8, Issue 1

**1-30 Coalitional values for cooperative games withr alternatives***by*M. Albizuri & José Zarzuelo**31-41 Implementation of the τ-value***by*Gustavo Bergantiños & Luciano Méndez-Naya**43-55 Simple games on closure spaces***by*J. Bilbao & E. Lebrón & N. Jiménez**57-71 A real delivery problem dealt with Monte Carlo Techniques***by*P. Córdoba & L. García-Raffi & A. Mayado & J. Sanchis**73-96 Multicommodity long-term hydrogeneration optimization with capacity and energy constraints***by*José González & Narcís Nabona**97-110 Multiobjective fractional programming with generalized convexity***by*R. Osuna-Gómez & A. Rufián-Lizana & P. Ruíz-Canales**111-134 Strategies of node selection in search procedures for solving combinatorial optimization problems: A survey and a general formalization***by*Rafael Pastor & Albert Corominas**135-162 An algorithmic study of the Maximum Flow problem: A comparative statistical analysis***by*A. Sedeño-Noda & M. González-Sierra & C. González-Martín**163-164 Corrections to “Queueing analysis of a sequential recognizer of patterns”***by*A. Aissani & J. Asselin de Beauville

### 1999, Volume 7, Issue 2

**169-186 Switching stochastic models and applications in retrial queues***by*Vladimir Anisimov**187-211 A classified bibliography of research on retrial queues: Progress in 1990–1999***by*J. Artalejo**213-220 AnM/M/c queue with impatient customers***by*Nam Boots & Henk Tijms**221-229 Asymptotical properties of erlang queueing systems with a dependent Poisson input flow***by*Alexander Chechelnitski**231-248 MAP 1 , MAP 2 /M/c retrial queue with guard channels and its application to cellular networks***by*Bong Choi & Yong Chang & Bara Kim**249-266 Matrix analytic methods for a multi-server retrial queue with buffer***by*Jeffrey Diamond & Attahiru Alfa**267-278 BMAP|SM⥻1 model with Markov modulated retrials***by*A. Dudin & V. Klimenok**279-291 Heavy traffic analysis of M/G/1 type queueing systems with Markov-modulated arrivals***by*Gennadi Falin & Anatoli Falin**293-304 Reliability of ak-out-of-n system with repair and retrial of failed units***by*A. Krishnamoorthy & P. Ushakumari**305-322 Markovian polling systems with mixed service disciplines and retrial customers***by*Christos Langaris**323-332 On queuing systems with failures and several types of input flows***by*Eugene Lebedev & Oleg Ponomarchuk**333-350 The infinite server queue and heuristic approximations to the multi-server queue with and without retrials***by*M. Ramalhoto**351-353 Retrial queues***by*J. Templeton**i-iii Preface***by*Jesús Artalejo

### 1999, Volume 7, Issue 1

**1-23 Analytical solution for a class of learning by doing models with multiplicative uncertainty***by*Francisco Álvarez & Emilio Cerdá**25-31 Note on an improved branch-and-bound algorithm to solve n/m/P/F max problems***by*Ramón Companys**33-70 Extensions of Dinkelbach's algorithm for solving non-linear fractional programming problems***by*Ricardo Ródenas & M. López & Doroteo Verastegui**71-80 An algorithm for computing the stable coalition structures in tree-graph communication games***by*Fritz Grafe & Elena Inarra & Ana Mauleon**81-101 A generalized Malmquist productivity index***by*E. Grifell-Tatjé & C. Lovell**103-121 Locally Farkas-Minkowski linear inequality systems***by*Rubén Puente & Virginia Vera de Serio**123-143 The stochastic bottleneck linear programming problem***by*I. Stancu-Minasian & R. Caballero & E. Cerdá & M. Muñoz**145-153 On using an automatic scheme for obtaining the convex hull defining inequalities of a Weismantel 0–1 knapsack constraint***by*Laureano Escudero & Araceli Garín & Gloria Pérez**155-161 On surrogating 0–1 knapsack constraints***by*Laureano Escudero & M. Martínez & M. Ortuño**163-168 On the consistency of the Banzhaf semivalue***by*Luis Ruiz

### 1998, Volume 6, Issue 2

**159-177 Location of rectilinear center trajectories***by*J. Díaz-Báñez & J. Mesa**179-194 Polynomial algorithms for parametric minquantile and maxcovering planar location problems with locational constraints***by*Emilio Carrizosa & Frank Plastria**195-204 A convergent approximation scheme for efficient sets of the multi-criteria Weber location problem***by*Justo Puerto & R. Fernández**205-221 Efficient solution methods for covering tree problems***by*T. Boffey**223-246 Location of paths on trees with minimal eccentricity and superior section***by*Pascual Fernández & Blas Pelegrín & José Fernández**247-260 Discretization results for the Huff and Pareto-Huff competitive location models on networks***by*Peter Peeters & Frank Plastria**261-275 The many-to-many location-routing problem***by*G. Nagy & S. Salhi**277-286 Solving the plant location problem on a line by linear programming***by*Jack Brimberg & Charles ReVelle**287-311 A methodology for modelling travel distances by Bias estimation***by*Francisco Ortega & Juan Mesa**313-319 Maximin location: Discretization not always works***by*Isabel Alonso & Emilio Carrizosa & Eduardo Conde**v-v Preface***by*Blas Pelegrín

### 1998, Volume 6, Issue 1

**1-18 A multi-local optimization algorithm***by*Teresa León & Susana Sanmatías & Enriqueta Vercher**19-36 0–1 equivalent model representations for air traffic management***by*Antonio Alonso & Laureano Escudero**45-66 Queuing analysis of a sequential recognizer of patterns***by*A. Aissani & J. Beauville**67-95 Detecting embedded pure network structures in LP problems***by*Nalân Gülpinar & Gautam Mitra & Istvan Maros**97-121 Sensitivity analysis in A class of dynamic optimization models***by*Jesús Antón & Emilio Cerdá & Elena Huergo**123-138 Searching for a strong double tracing in a graph***by*Enrique López & David Fernández**139-158 Some new results on least square values for TU games***by*Luis Ruiz & Federico Valenciano & José Zarzuelo

### 1997, Volume 5, Issue 2

**167-186 Towards a constructive approach to act-conditional subjective expected utility models***by*Zhigang Xie & Simon French**187-199 The biobjective absolute center problem***by*Rosa Ramos & Joaquín Sicilia & Teresa Ramos**201-211 Different ways to represent weighted majority games***by*J. Freixas**213-219 A comparison of algorithm RS with algorithm OPTSOL70***by*Marc Almiñana & Jesús Pastor**221-239 Modelling and solving the production rate variation problem (PRVP)***by*Joaquín Bautista & Ramon Companys & Albert Corominas**253-281 The Hierarchical compromise programming***by*María Escobar & José Moreno-Jiménez**283-296 A tabu search algorithm for the Open Shop problem***by*David Alcaide & Joaquín Sicilia & Daniele Vigo**297-305 Probabilistic order level system with lead time when delay in payments are permissible***by*Nita Shah**307-311 A necessary and sufficient condition to a pareto optimal without optimizing the weighting criterion***by*M. Sánchez & M. Sobrón

### 1997, Volume 5, Issue 1

**1-40 A survey of some mathematical programming models in transportation***by*Jaume Barceló**41-59 Solving large set covering problems for crew scheduling***by*Ferdinando Pezzella & Enrico Faggioli**61-80 A few practical problems on the application of OD-estimation in motorway networks***by*Yong Zhou & Thomas Sachse**81-93 Traffic queue estimation***by*Jean-Louis Gallego & Jean-Loup Farges & Jean-Jacques Henry**95-104 Assessing the efficiency of rapid transit configurations***by*Gilbert Laporte & Juan Mesa & Francisco Ortega**105-126 The two-convex-polygons TSP: A solvable case***by*Alfredo García & F. Tejel**127-142 Linearity criterion for the selection of an optimal tree***by*Arantza Rio & Francisco Cano Sevilla & Antonio Prados**143-157 On the optimal control of stochastic linear systems with contaminated partial observations***by*Rosario Romera**159-166 On due-date based valid cuts for the sequential ordering problem***by*L. Escudero & M. Ortuño

### 1996, Volume 4, Issue 2

**187-214 Asymptotic behavior of continuous stochastic games***by*M. Muruaga & R. Vélez**215-223 Some properties of cliques in 0–1 mixed integer programs***by*L. Escudero & A. Garín & G. Pérez**225-256 A simplicial decomposition algorithm for solving the variational inequality formulation of the general traffic assignment problem for large scale networks***by*L. Montero & J. Barceló**257-267 A prekernel characterization by means of stability properties***by*E. Calvo & E. Gutiérrez**269-284 An improvement and an extension of the Elzinga & Hearn's algorithm to the 1-center problem in ℝ n withl 2b -normswithl 2b -norms***by*B. Pelegrín & L. Cánovas**285-299 Utility efficiency and its approximation***by*A. Mateos & S. Ríos-Insua**301-318 Optimal purchase and advertising for a product with immediate sale start***by*D. Favaretto & B. Viscolani**319-329 Variability reduction with multiweighing proceedings***by*M. Salicrú & C. González & J. Barreiro**331-343 Optimal use of hub facilities: A two-hub model with fixed arc costs***by*R. Garfinkel & P. Sundararaghavan & C. Noon & D. Smith**345-359 Approximate algorithms for theP‖C max problem***by*J. Riera & D. Alcaide & J. Sicilia**361-384 A model for strategic planning under uncertainty***by*P. Baricelli & C. Lucas & E. Messina & G. Mitra

### 1996, Volume 4, Issue 1

**1-53 Combinatorial optimization and small polytopes***by*T. Christof & G. Reinelt**54-64 Discussion***by*Laureano Escudero & M. Ortuño & V. Campos & Reinhardt Euler & Michael Jünger**65-86 The Vehicle Routing-Allocation Problem: A unifying framework***by*J. Beasley & E. Nascimento**87-98 On using clique overlapping for detecting knapsack constraint redundancy and infeasibility in 0–1 mixed integer programs***by*L. Escudero & A. Garín & G. Pérez**99-120 A G/M/1-queue with exponential retrial***by*R. Lillo**121-133 A retrial model in a nonstationary regime***by*M. Vázquez**135-163 A branch-and-cut algorithm for a generalization of the Uncapacitated Facility Location Problem***by*A. Caprara & J. González**165-185 On the reduced game property for and the axiomatization of the T-value of TU-games***by*Theo Driessen

### 1995, Volume 3, Issue 2

**167-220 Multiobjective routing problems***by*B. Boffey & Francisco García & Gilbert Laporte & Juan Mesa & Blas Pelegrín**221-234 A new algorithm for the Integer Knapsack Problem and its parallelization***by*F. Almeida & F. García & D. Morales & J. Roda & C. Rodríguez**235-245 A simple procedure to compute the nucleolus of Γ-component additive games***by*F. Grafe & A. Mauleon & E. Iñarra**247-263 Paréto equilibria in multicriteria metagames***by*S. Wang & Z. Li**265-283 On ranking of feasible solutions of a bottleneck linear programming problem***by*K. Mathur & M. Puri & S. Bansal**285-305 On the M/G/1 retrial queueing system with linear control policy***by*M. Martín & A. Gómez-Corral**307-336 A review of O.R. practice in Spain***by*M. López & J. Pastor

### 1995, Volume 3, Issue 1

**1-34 Robust stabilization of internally delayed uncertain systems via sliding mode control***by*N. Luo & M. Sen**35-46 On the axiomatization of the τ-value***by*E. Calvo & S. Tijs & F. Valenciano & J. Zarzuelo**47-68 Fuzzy multicriteria decision support for budget allocation in the transport sector***by*J. Montero & A. Pearman & J. Tejada**69-95 On solving stochastic production planning problems via scenario modelling***by*L. Escudero & P. Kamesam**97-116 Reciprocal cooperation in the Prisoner's Dilemma repeated with random horizon***by*C. Manuel & J. Tejada**117-135 Cooperation indices and coalitional value***by*R. Amer & F. Carreras**137-144 Hores: A timetabling system for Spanish secondary schools***by*R. Alvarez-Valdes & G. Martin & J. Tamarit**145-159 Demurrage costs optimization in ports using binary mathematical programming models***by*E. Parra**161-165 A correction of the justification of the Dietrich-escudero-garín-pérez O(n) procedures for identifying maximal cliques and non-dominated extensions of consecutive minimal covers and alternates***by*S. Muñoz

### 1994, Volume 2, Issue 2

**175-248 Linear programming approaches to the measurement and analysis of productive efficiency***by*C. Lovell & Shawna Grosskopf & Eduardo Ley & Jesús Pastor & Diego Prior & Philippe Eeckaut**249-314 Validation and generalization of DEA and its uses***by*R. Banker & W. Cooper & E. Grifell-Tajté & Jesús Pastor & Paul Wilson & Eduardo Ley & C. Lovell**315-328 Two new heuristics for the location set covering problem***by*M. Almiñana & J. Pastor**329-342 Stochastic decomposition for retrial queues***by*J. Artalejo & J. Falin

### 1994, Volume 2, Issue 1

**1-23 Stochastic Simulation and Monte Carlo methods applied to the assessment of hydro-thermal generating system operation***by*J. Román Ubeda & R. Allan**25-58 Network planning under uncertainty with an application to hydropower generation***by*M. Alvarez & C. Cuevas & L. Escudero & J. Escudero & C. García & F. Prieto**59-84 Long-term hydrothermal coordination with natural inflows modelled through a PDF and simulation results***by*J. González & N. Nabona**85-103 Development of a state estimator based on line-current measurements decomposition***by*A. Gómez & J. Martínez & E. Romero & J. Ruiz & J. Durán & A. Luque & F. González**105-132 Development and computational tests of an undecoupled optimum short-term hydro-thermal schedulling code using network flows***by*F. Heredia & N. Nabona**133-149 Medium-term hydro-thermal coordination via hydro and thermal subsystem decomposition***by*J. Medina & A. Conejo & F. Pérez Thoden & J. González del Santo**151-166 Stochastic load modelling for electric energy distribution applications***by*C. Álvarez & S. Añó**167-173 The contribution of operations research techniques to the evaluation of electric utility performance***by*C. Lovell & J. Pastor**i-i Foreword***by*Antonio Conejo

### 1993, Volume 1, Issue 1

**1-36 Compromise values in cooperative game theory***by*Stef Tijs & Gert-Jan Otten**36-51 Discussion***by*Marco López-Cerdá & Guillermo Owen & Jos Potters & Carles Raffels & E. Calvo & F. Valenciano & J. Zarzuelo**53-88 A robust discrete adaptive control algorithm involving linear and/or adaptive inputs***by*M. Sen**89-105 ARC A computerized system for urban garbage collection***by*R. Álvarez-Valdés & E. Benavent & V. Campos & A. Corberán & E. Mota & J. Tamarit & V. Valls**107-116 A polygonal upper bound for the efficient set for single-facility location problems with mixed norms***by*Emilio Priego & Francisco Fernández García**117-125 Barlow-wu continuum systems: A discussion on the model***by*J. Yáñez & J. Montero**127-138 On spectral radii of matrices governing some numerical estimating algorithms with incomplete data***by*Carmen Anido & Teófilo Valdés**139-160 O(n) Procedures for identifying maximal cliques and non-dominated extensions of consecutive minimal covers and alternates***by*B. Dietrich & L. Escudero & A. Garín & G. Pérez

### 1986, Volume 1, Issue 1

**3-21 Juegos invariantes***by*Jesús Aguado**23-49 Un algoritmo de programacion geometrica basado en funciones penalidad-multiplicadoras***by*Eduardo Méndez**51-59 Clasification en programacion multiobjetivo***by*Carlos Martin**61-72 Estudio bayesiano de los periodos de ocupacion y desocupacion en una cola M/M/1/∞/FIFO en equilibrio***by*Carmen Cervera**73-85 Indices economicos. Modelo dinamico de inversion***by*M. Fernández Fernández**87-103 Problemas de control estocastico con informacion incompleta que admiten un proceso suficiente***by*Javier Gestoso**105-114 Dualidad de Haar y problemas de momentos***by*M. Goberna