1
Full text available from ABI/INFORM Trade & Industry: 09/29/2010 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
2
Full text available from ABI/INFORM Dateline: 12/27/2008 to present
Full text available from European Newsstream: 12/27/2008 to present
Full text available from Military Database: 12/27/2008 to present
Ηλεκτρονική πηγή Εφημερίδα
4
Full text available from European Newsstream: 12/18/2009 to present
Full text available from Military Database: 12/18/2009 to present
Ηλεκτρονική πηγή Περιοδική έκδοση
5
Full text available from Canadian Business & Current Affairs Database: 07/01/1997 to 12/31/2008
Full text available from Canadian Business & Current Affairs Database: 01/01/2010 to 01/31/2012
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
6
Έκδοση 1977
Full text available from Research Library: 01/01/1998 to 12/31/2011
Full text available from Research Library: 01/01/2015 to 12/31/2015
Full text available from Research Library: 01/01/2017 to 12/31/2017
Full text available from Research Library: 01/01/2019 to 6 months ago
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
8
Full text available from ABI/INFORM Trade & Industry: 12/01/2010 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
9
Full text available from ABI/INFORM Trade & Industry: 03/15/2011 to 05/24/2011
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
10
Full text available from ABI/INFORM Trade & Industry: 04/01/2010 to 01/31/2017
Full text available from Agricultural Science Database: 04/01/2010 to 01/31/2017
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
11
Full text available from Materials Science Database: 05/01/2007 to 07/31/2009
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
12
Full text available from ABI/INFORM Trade & Industry: 04/01/2010 to 10/31/2016
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
13
Full text available from Engineering Database: 09/01/2011 to 12/31/2012
Ηλεκτρονική πηγή Εφημερίδα
14
Full text available from Agricultural Science Database: 08/01/2005 to 12/31/2009
Full text available from Engineering Database: 08/01/2005 to 12/31/2009
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
15
Full text available from ABI/INFORM Trade & Industry: 01/01/2010 to 01/31/2016
Full text available from Materials Science Database: 01/01/2010 to 01/31/2016
Ηλεκτρονική πηγή Επιστημονικό περιοδικό