@article{RO_1978__12_3_263_0,
     author = {Liouville, Bernard},
     title = {Le probl\`eme du voyageur de commerce dans un produit cart\'esien de deux graphes},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {263--275},
     publisher = {EDP-Sciences},
     volume = {12},
     number = {3},
     year = {1978},
     mrnumber = {496618},
     zbl = {0384.90103},
     language = {fr},
     url = {http://archive.numdam.org/item/RO_1978__12_3_263_0/}
}