Lee J. White Husain Almezen Nasser Alzeidi User-Based Testing of GUI Sequences and Their Interactions. 54-65 2001 conf/issre/2001 ISSRE http://csdl.computer.org/comp/proceedings/issre/2001/1306/00/13060054abs.htm db/conf/issre/issre2001.html#WhiteAA01