Sven Apel, William R. Cook, Krzysztof Czarnecki, Christian Kästner, Neil Loughran, Oscar Nierstrasz: Proceedings of the First International Workshop on Feature-Oriented Software Development, FOSD 2009, Denver, Colorado, USA, October 6, 2009. ACM International Conference Proceeding Series, ACM 2009, ISBN 978-1-60558-567-3