2
Έκδοση 1999
Full text available from ABI/INFORM Global: 10/01/2003 to present
Full text available from East Europe, Central Europe Database: 10/01/2003 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
6
Full text available from Biological Science Database: 01/01/2009 to present
Full text available from Environmental Science Database: 01/01/2009 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
7
Έκδοση 2004
Full text available from Agricultural Science Database: 08/01/2007 to 12/31/2013
Full text available from East Europe, Central Europe Database: 08/01/2007 to 12/31/2013
Full text available from Health & Medical Collection: 08/01/2007 to 12/31/2013
Ηλεκτρονική πηγή Επιστημονικό περιοδικό