Generative and Component-Based Software Engineering First International Symposium, GCSE'99, Erfurt, Germany, September 28-30, 1999. Revised Papers - Czarnecki, Krzysztof; Czarnecki, Krzysztof; Eisenecker, Ulrich W.; Eisenecker, Ulrich W. (Springer Berlin Heidelberg : Imprint: Springer, 2000)