Νταούλη Ιωάννα, Ντεμούσης Μιχαήλ, and Φουσέκης Π. 2001. “An Empirical Investigation of the Input Substitutability in the Inshore and Open Sea Fisheries”. SPOUDAI Journal of Economics and Business 51 (3-4):61-75. https://spoudai.org/index.php/journal/article/view/490.