R. de Carvalho, and B. Johansson. Handbook of Research on Software Engineering and Productivity Technologies: Implications of Globalization. Engineering Science Reference, Hershey, (2010)
F. Sudzina, A. Pucihar, and G. Lenart. IDIMT – Managing the Unmanagable, Jindřichův Hradec, Institut für Systems Engineering and Automation, Johannes-Kepler-Universität Linz, page 131-142. (2008)