@INPROCEEDINGS{RevMon-AAAI,
    author = "Baharak Rastegari and Anne Condon and Kevin Leyton-Brown",
    title = "Revenue Monotonicity in Combinatorial Auctions",
    booktitle = "Association for the Advancement of Artificial Intelligence (AAAI)",
    pages = "122--127",
    year = "2007"
}