Hadas Shachnai Tami Tamir Omer Yehezkely Approximation Schemes for Packing with Item Fragmentation. 81-98 2008 43 Theory Comput. Syst. 1 http://dx.doi.org/10.1007/s00224-007-9082-x db/journals/mst/mst43.html#ShachnaiTY08