Karthikeyan Bhargavan Andrew D. Gordon Iman Narasamdya Service Combinators for Farming Virtual Machines. 22 2007 TGC http://dx.doi.org/10.1007/978-3-540-78663-4_3 conf/tgc/2007 db/conf/tgc/tgc2007.html#BhargavanGN07