1
Full text available from Research Library: 01/01/2011 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
2
Full text available from Agricultural Science Database: 06/01/2009 to present
Full text available from Engineering Database: 06/01/2009 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό