1
Full text available from ABI/INFORM Global: 04/01/2006 to 12/31/2010
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
2
Full text available from ABI/INFORM Global: 01/01/2011 to present
Full text available from Engineering Database: 01/01/2011 to present
Full text available from Turkey Database: 01/01/2011 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό