@InProceedings{Babaioff04a,
  author =	 {Babaioff, Moshe and Blumrosen, Liad},
  title =	 {Computationally Feasible Auctions for Convex Bundles},
  booktitle =    {7th. International Workshop on Approximation Algorithms for Combinatorial Optimization Problems (APPROX). LNCS Vol. 3122},
  pages =        "27--38",
  year =         2004
}