. "Mattas, Konstadinos" . . . "1949"^^ . _:b10iddOtlocdOtgovrwoagentsn86838221 . _:b10iddOtlocdOtgovrwoagentsn86838221 . _:b10iddOtlocdOtgovrwoagentsn86838221 . . "Aristoteleio Panepistēmio Thessalonikēs" . . . "Agriculture--Economic aspects" . . . "University and college faculty members" . . . "Economists" . . . "English"@en . . . . "Agricultural Cooperative Management and Policy" . . . "Sustainable Agricultural Development" . . . "Sustainable Agriculture and Food Security" .