Mark Harman Lin Hu Robert M. Hierons Joachim Wegener Harmen Sthamer André Baresel Marc Roper 3-16 2004 30 IEEE Trans. Software Eng. 1 http://csdl.computer.org/comp/trans/ts/2004/01/e0003abs.htm db/journals/tse/tse30.html#HarmanHHWSBR04