@article{RO_1982__16_3_241_0,
     author = {Lahrichi, Abdelkader},
     title = {Ordonnancements. {La} notion de {\guillemotleft} parties obligatoires {\guillemotright} et son application aux probl\`emes cumulatifs},
     journal = {RAIRO - Operations Research - Recherche Op\'erationnelle},
     pages = {241--262},
     publisher = {EDP-Sciences},
     volume = {16},
     number = {3},
     year = {1982},
     zbl = {0491.90053},
     language = {fr},
     url = {http://www.numdam.org/item/RO_1982__16_3_241_0/}
}