Efficiency and productivity of French ski resorts / Olga Goncalves
COTA(S): RE-1193
French destination efficiency: A mean-variance approach / Laurent Botti, Olga Gonçalves, Hermann Ratsimbanierana
COTA(S): RE-111
Technical efficiency measurement and inverse B-convexity: Moroccan travel agencies / Olga Goncalves [et al.]
COTA(S): RE-1822