Yu Liu Satoshi Komatsu Masahiro Fujita AMS Extensions for Timed/Untimed System-Level Design Language. 77-81 2005 FDL http://www.ecsi-association.org/ecsi/main.asp?l1=library&fn=def&id=422 conf/fdl/2005 db/conf/fdl/fdl2005.html#LiuKF05