Susumu Adachi Ferdinand Peper Jia Lee Hiroshi Umeo Occurrence of Gliders in an Infinite Class of Life-Like Cellular Automata. 32-41 2008 ACRI http://dx.doi.org/10.1007/978-3-540-79992-4_5 conf/acri/2008 db/conf/acri/acri2008.html#AdachiPLU08