Paul Baker Ekkart Rudolph Ina Schieferdecker Graphical Test Specification - The Graphical Format of TTCN-3. 148-167 2001 conf/sdl/2001 SDL Forum http://link.springer.de/link/service/series/0558/bibs/2078/20780148.htm db/conf/sdl/sdl2001.html#BakerRS01