@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://www.numdam.org/item/RO_1991__25_4_425_0/}
}