The double traveling salesman problem with multiple stacks: A variable neighborhood search approach. - Ángel Felipe; M. Teresa Ortuño; Gregorio Tirado (Comput. Oper. Res., 2009)

Using intermediate infeasible solutions to approach vehicle routing problems with precedence and loading constraints. - Ángel Felipe; M. Teresa Ortuño; Gregorio Tirado (Eur. J. Oper. Res., 2011)

A multi-criteria optimization model for humanitarian aid distribution. - Begoña Vitoriano; M. Teresa Ortuño; Gregorio Tirado; Javier Montero (J. Glob. Optim., 2011)

An adapted heuristic approach for a clustered traveling salesman problem with loading constraints. - Ángel Felipe; M. Teresa Ortuño; Gregorio Tirado (4OR, 2012)

Exact and heuristic algorithms for the green vehicle routing problem. - Ángel Felipe Ortega; María Teresa Ortuño Sánchez; Gregorio Tirado Domínguez; Giovanni Righini (CTW, 2013)

Heuristics for dynamic and stochastic routing in industrial shipping. - Gregorio Tirado; Lars Magnus Hvattum; Kjetil Fagerholt; Jean-François Cordeau (Comput. Oper. Res., 2013)

A hierarchical compromise model for the joint optimization of recovery operations and distribution of emergency goods in Humanitarian Logistics. - Federico Liberatore; M. Teresa Ortuño; Gregorio Tirado; Begoña Vitoriano; Maria Paola Scaparra (Comput. Oper. Res., 2014)

A lexicographical dynamic flow model for relief operations. - Gregorio Tirado; Francisco Javier Martín-Campo; Begoña Vitoriano; M. Teresa Ortuño (Int. J. Comput. Intell. Syst., 2014)

Heuristics for the Design of Safe Humanitarian Aid Distribution Itineraries. - José M. Ferrer; M. Teresa Ortuño; Gregorio Tirado; Begoña Vitoriano (EvoApplications, 2015)

The multiple vehicle pickup and delivery problem with LIFO constraints. - Enrique Benavent; Mercedes Landete; Enrique Mota; Gregorio Tirado (Eur. J. Oper. Res., 2015)

A GRASP metaheuristic for humanitarian aid distribution. - José M. Ferrer; M. Teresa Ortuño; Gregorio Tirado (J. Heuristics, 2016)

Improved solutions to dynamic and stochastic maritime pick-up and delivery problems using local search. - Gregorio Tirado; Lars Magnus Hvattum (Ann. Oper. Res., 2017)

Heuristics for the robust vehicle routing problem with time windows. - Simen Braaten; Ola Gjønnes; Lars Magnus Hvattum; Gregorio Tirado (Expert Syst. Appl., 2017)

Multi-criteria optimization for last mile distribution of disaster relief aid: Test cases and applications. - José M. Ferrer; Francisco Javier Martín-Campo; M. Teresa Ortuño; Alfonso J. Pedraza Martinez; Gregorio Tirado; Begoña Vitoriano (Eur. J. Oper. Res., 2018)

The probabilistic pickup-and-delivery travelling salesman problem. - Enrique Benavent; Mercedes Landete; Juan José Salazar González; Gregorio Tirado (Expert Syst. Appl., 2019)

Effectiveness of carbon pricing policies for promoting urban freight electrification: analysis of last mile delivery in Madrid. - Jose L. Arroyo; Ángel Felipe; M. Teresa Ortuño; Gregorio Tirado (Central Eur. J. Oper. Res., 2020)

Multi-objective optimization for a strategic ATM network redesign problem. - Are Denstad; Einar Ulsund; Marielle Christiansen; Lars Magnus Hvattum; Gregorio Tirado (Ann. Oper. Res., 2021)

Variable neighborhood search to solve the generalized orienteering problem. - Adolfo-Javier Urrutia-Zambrana; Gregorio Tirado; Alfonso Mateos (Int. Trans. Oper. Res., 2021)

A Branch-and-Cut-and-Price Algorithm for the Electric Vehicle Routing Problem with Multiple Technologies. - Alberto Ceselli; Ángel Felipe; M. Teresa Ortuño; Giovanni Righini; Gregorio Tirado (Oper. Res. Forum, 2021)