Shusuke Yamazaki Hideki Tode Koso Murakami CAT: A Cost-Aware BitTorrent. 3831-3841 2008 91-B IEICE Transactions 12 http://dx.doi.org/10.1093/ietcom/e91-b.12.3831 db/journals/ieicet/ieicet91b.html#YamazakiTM08