@article{RO_1991__25_4_425_0, author = {Atteia, M. and Elqortobi, A.}, title = {Hamiltoniens quasi-convexes quasi-concaves}, journal = {RAIRO - Operations Research - Recherche Op\'erationnelle}, pages = {425--438}, publisher = {EDP-Sciences}, volume = {25}, number = {4}, year = {1991}, mrnumber = {1143503}, zbl = {0744.90080}, language = {fr}, url = {http://archive.numdam.org/item/RO_1991__25_4_425_0/} }