Ahmed Mateen and Zhu Qingsheng and Faisal Shahzad, Requirement Engineering and Software Product Line Scoping Paradigm. journal = {International Journal of Information and Communication Engineering}, [online]. World Academy of Science, Engineering and Technology. May 2018, vol. 138(6). 383 - 388 [viewed 23 September 2024]. Available from: https://publications.waset.org/pdf/10009067.