Fafaliou, I., M. Stefanitsis, and A. Skaržauskienė. “The Propensity of SMEs to Innovate: A Cross – Country Outlook”. SPOUDAI Journal of Economics and Business, vol. 64, no. 3, Sept. 2014, pp. 94-115, https://spoudai.org/index.php/journal/article/view/221.