Hidekazu Kubota Satoshi Nomura Yasuyuki Sumi Toyoaki Nishida Sustainable Memory System Using Global and Conical Spaces. 135-148 2007 13 J. UCS 2 http://www.jucs.org/jucs_13_2/sustainable_memory_system_using db/journals/jucs/jucs13.html#KubotaNSN07