%0 Journal Article %T 9.2.1 Developing Product Lines in Engine Control Systems: Systems Engineering Challenges %A Atherton, Malvern J. %A Collins, Shawn T. %J Incose International Symposium %V 23 %N 1 %P 184-198 %D 2013-06-01 %I Wiley Subscription Services, Inc., A Wiley Company %~ DeepDyve