Advances in Software Engineering Techniques 4th IFIP TC 2 Central and East European Conference on Software Engineering Techniques, CEE-SET 2009, Krakow, Poland, October 12-14, 2009. Revised Selected Papers - Szmuc, Tomasz; Szpyrka, Marcin; Zendulka, Jaroslav (Springer Berlin Heidelberg : Imprint: Springer, 2012)