PT Unknown AU 4th International Workshop on Variability Modelling of Software-intensive Systems (VaMoS’10), January 27–29, 2010, Johannes Kepler University Linz. TI Fourth International Workshop on Variability Modelling of Software-intensive Systems: Proceedings SE ICB Research Reports PD 01 PY 2010 IS 37 DI 10.17185/duepublico/47086 LA en AB This ICB Research Report constitutes the Proceedings of the 4th International Workshop on Variability Modelling of Software-intensive Systems (VaMoS’10), which was held from January 27–29, 2010 at the Johannes Kepler University Linz. ER