Essays on OR in ALIO country members (part 1)

The Spanish Sociedad de Estadistica e Investigacion-Operativa, SEIO, devotes two volumes of its journal TOP (co-guest-edited by Antonio Alonso-Ayuso, Laureano F. Escudero and Nelson Maculan) to present works by representative authors of ALIO member countries. ALIO (Asociacion Latino-Iberoamericana de Investigacion-Operativa), https://www.alio-online.org/, is a regional association within IFORS.