@article{RO_2002__36_1_21_0, author = {Bampis, Evripidis and Giroudeau, R. and K\"onig, J.-C.}, title = {On the hardness of approximating the {UET-UCT} scheduling problem with hierarchical communications}, journal = {RAIRO - Operations Research - Recherche Op\'erationnelle}, pages = {21--36}, publisher = {EDP-Sciences}, volume = {36}, number = {1}, year = {2002}, doi = {10.1051/ro:2002003}, mrnumber = {1920377}, zbl = {1005.90031}, language = {en}, url = {http://www.numdam.org/articles/10.1051/ro:2002003/} }