@article{ITA_2009__43_2_239_0,
     author = {Xavier, Eduardo C. and Miyazawa, Fl\`avio Keidi},
     title = {A note on dual approximation algorithms for class constrained bin packing problems},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
     pages = {239--248},
     publisher = {EDP-Sciences},
     volume = {43},
     number = {2},
     year = {2009},
     doi = {10.1051/ita:2008027},
     mrnumber = {2512257},
     zbl = {1166.68368},
     language = {en},
     url = {http://www.numdam.org/articles/10.1051/ita:2008027/}
}