Takahiro Hirofuchi Takeshi Yokoi Tadashi Ebara Yusuke Tanimura Hirotaka Ogawa Hidetomo Nakada Yoshio Tanaka Satoshi Sekiguchi A Multi-Site Virtual Cluster System for Wide Area Networks. 2008 LASCO http://www.usenix.org/events/wiov08/tech/full_papers/hirofuchi/hirofuchi.pdf conf/usenix/2008lasco db/conf/usenix/lasco2008.html#HirofuchiYETONTS08