• Lagrangean relaxation for the geographical partitioning problem 

      Díaz García, Juan Antonio; Bernabé Loranca, María Beatriz; Luna Reyes, Dolores Edwiges; Olivares Benítez, Elías; Martínez Flores, José Luis (2012-07-01)
      Among methodologies used in territory clustering, stand location-allocation and set partitioning models, to group small geographic areas, usually called “basic units” into a given number of larger groups called “territories”. ...