101
Έκδοση 1956
Full text available from Science Database: 01/01/2015 to present
Full text available from Social Science Database: 01/01/2015 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
102
Full text available from Advanced Technologies & Aerospace Database: 11/01/2000 to 12/31/2018
Full text available from Science Database: 11/01/2000 to 12/31/2018
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
105
Έκδοση 2006
Full text available from East Europe, Central Europe Database: 01/01/2010 to present
Ηλεκτρονική πηγή Περιοδική έκδοση
107
Full text available from East Europe, Central Europe Database: 01/01/2012 to present
Full text available from Research Library: 01/01/2012 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
108
Έκδοση 1961
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Ηλεκτρονική πηγή Επιστημονικό περιοδικό
111
Έκδοση 1987
Full text available from Career & Technical Education Database: 02/01/2006 to 09/30/2006
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Ηλεκτρονική πηγή Επιστημονικό περιοδικό
113
Full text available from Biological Science Database: 03/01/2007 to 10/31/2018
Full text available from Health & Medical Collection: 03/01/2007 to 10/31/2018
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Ηλεκτρονική πηγή Επιστημονικό περιοδικό
115
Έκδοση 1985
Full text available from Biological Science Database: 01/01/1986 to present
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Ηλεκτρονική πηγή Επιστημονικό περιοδικό
116
Full text available from Biological Science Database: 01/01/1997 to 1 year ago
Full text available from Health & Medical Collection: 01/01/1997 to 1 year ago
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
119
Full text available from ABI/INFORM Global: 09/01/2000 to 11/30/2018
Full text available from Advanced Technologies & Aerospace Database: 09/01/2000 to 11/30/2018
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Ηλεκτρονική πηγή Επιστημονικό περιοδικό