Dimitris Stavrinoudis Michalis Nik Xenos Pavlos Peppas Dimitris Christodoulakis Early Estimation of Users' Perception of Software Quality. 155-175 2005 13 Software Quality Journal 2 http://dx.doi.org/10.1007/s11219-005-6215-9 db/journals/sqj/sqj13.html#StavrinoudisXPC05