//-->
Učastie na bălgarskite firmi v Šesta ramkova programa : motivi i polzi
Borisova, Ralica, (2008)
Public demand for R&D-based innovation : the case of Bulgaria
Čobanova, Rosica Dobreva, (2009)
R&D in boom and bust : evidence from the World Bank financial crisis survey
Männasoo, Kadri, (2011)