Daniel Bienstock Garud Iyengar Solving fractional packing problems in <i>O</i><sup>ast</sup>(1/?) iterations. 146-155 2004 conf/stoc/2004 STOC http://doi.acm.org/10.1145/1007352.1007382 db/conf/stoc/stoc2004.html#BienstockI04