1
Έκδοση 2004
Full text available from Agricultural Science Database: 03/01/2009 to present
Full text available from East Europe, Central Europe Database: 03/01/2009 to present
Full text available from Environmental Science Database: 03/01/2009 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
2
Full text available from ABI/INFORM Global: 01/01/2007 to present
Full text available from East Europe, Central Europe Database: 01/01/2007 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό