Tony Gorschek Samuel Fricker Robert Feldt Claes Wohlin Michael Mattsson 1st International Global Requirements Engineering Workshop --- GREW'07. 29-32 2008 33 ACM SIGSOFT Software Engineering Notes 2 http://doi.acm.org/10.1145/1350802.1350807 db/journals/sigsoft/sigsoft33.html#GorschekFFWM08