1
Full text available from East Europe, Central Europe Database: 01/01/1968 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
2
Έκδοση 1980
Full text available from Arts & Humanities Database: 01/01/2010 to 01/31/2017
Full text available from East Europe, Central Europe Database: 01/01/2010 to 01/31/2017
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
3
Full text available from Arts & Humanities Database: 12/01/2008 to 01/31/2016
Full text available from Research Library: 12/01/2008 to 01/31/2016
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
4
Full text available from Arts & Humanities Database: 01/01/2007 to present
Full text available from Materials Science Database: 01/01/2007 to present
Full text available from Research Library: 01/01/2007 to present
Ηλεκτρονική πηγή Περιοδική έκδοση
5
Full text available from Arts & Humanities Database: 11/01/2000 to 01/31/2005
Full text available from Research Library: 11/01/2000 to 01/31/2005
Ηλεκτρονική πηγή Επιστημονικό περιοδικό