@inbook{Laney2004,
author = {Laney, R.C. and Barroca, L. and Jackson, M. and Nuseibeh, B.A.},
title= {Composing requirements using problem frames},
year = {2004},
doi = {10.1109/ICRE.2004.1335670.},
booktitle = {Proceedings. 12th IEEE International Requirements Engineering Conference, 2004},
address = {Kyoto, Japan},
pages = {122‒131},
}