@article{RO_2019__53_4_1279_0, author = {Mejri, Imen and Haouari, Mohamed and Layeb, Safa Bhar and Mansour, Farah Zeghal}, title = {An exact approach for the multicommodity network optimization problem with a step cost function}, journal = {RAIRO - Operations Research - Recherche Op\'erationnelle}, pages = {1279--1295}, publisher = {EDP-Sciences}, volume = {53}, number = {4}, year = {2019}, doi = {10.1051/ro/2019017}, mrnumber = {3989212}, zbl = {1425.90126}, language = {en}, url = {http://www.numdam.org/articles/10.1051/ro/2019017/} }