George Kakarontzas Spyros Lalis A Market-Based Protocol with Leasing Support for Globally Distributed Computing. 562-567 2001 conf/ccgrid/2001 CCGRID http://csdl.computer.org/comp/proceedings/ccgrid/2001/1010/00/10100562abs.htm db/conf/ccgrid/ccgrid2001.html#KakarontzasL01