1
Full text available from ABI/INFORM Trade & Industry: 12/01/2010 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
2
Full text available from ABI/INFORM Trade & Industry: 04/01/2010 to 01/31/2017
Full text available from Earth, Atmospheric & Aquatic Science Database: 04/01/2010 to 01/31/2017
Full text available from Engineering Database: 04/01/2010 to 01/31/2017
Ηλεκτρονική πηγή Επιστημονικό περιοδικό