Preprint -1999
Afrati, Foto and Bampis, Evripidis and Chekuri, Chandra and Karger, David and Kenyon, Claire and Khanna, Sanjeev and Milis, Ioannis and Queyranne, Maurice and Skutella, Martin and Stein, Cliff and Sviridenko, Maxim.
Approximation Schemes for Minimizing Average Weighted Completion Time with Release Dates.