3
Έκδοση 2009
Full text available from ABI/INFORM Global: 01/01/2009 to 10/31/2012
Full text available from Education Database: 01/01/2009 to 10/31/2012
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
5
Έκδοση 1997
Full text available from Career & Technical Education Database: 02/01/1999 to 11/30/2006
Full text available from Engineering Database: 02/01/1999 to 11/30/2006
Full text available from Materials Science Database: 02/01/1999 to 11/30/2006
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
7
Έκδοση 1998
Full text available from Canadian Business & Current Affairs Database: 09/01/2008 to 2013
Full text available from Science Database: 09/01/2008 to 2013
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
8
Έκδοση 1987
Full text available from ABI/INFORM Global: 11/01/1987 to 12/31/1989
Full text available from Advanced Technologies & Aerospace Database: 11/01/1987 to 12/31/1989
Full text available from Computer Science Database: 11/01/1987 to 12/31/1989
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
10
Έκδοση 2012
Full text available from Advanced Technologies & Aerospace Database: 03/01/2012 to present
Full text available from Computer Science Database: 03/01/2012 to present
Full text available from East & South Asia Database: 03/01/2012 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
11
Έκδοση 2009
Full text available from Engineering Database: 01/01/2009 to present
Full text available from India Database: 01/01/2009 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
13
Έκδοση 2010
Full text available from East & South Asia Database: 01/01/2013 to present
Full text available from Engineering Database: 01/01/2013 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
14
Full text available from ABI/INFORM Global: 02/01/2008 to 1 year ago
Full text available from Materials Science Database: 02/01/2008 to 1 year ago
Full text available from Science Database: 02/01/2008 to 1 year ago
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
15
Έκδοση 2013
Full text available from ABI/INFORM Global: 01/01/2013 to 01/31/2016
Full text available from Engineering Database: 01/01/2013 to 01/31/2016
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
16
Έκδοση 2001
Full text available from ABI/INFORM Trade & Industry: 01/01/2005 to 04/29/2015
Full text available from Career & Technical Education Database: 01/01/2005 to 04/29/2015
Full text available from Healthcare Administration Database: 01/01/2005 to 04/29/2015
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
18
Full text available from ABI/INFORM Trade & Industry: 12/01/2004 to 2006
Full text available from Career & Technical Education Database: 12/01/2004 to 2006
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
19
Έκδοση 2001
Full text available from Health & Medical Collection: 03/01/2006 to present
Full text available from Healthcare Administration Database: 03/01/2006 to present
Full text available from ABI/INFORM Trade & Industry: 11/02/2017 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
20
Full text available from Engineering Database: 07/01/1996 to 12/31/2010
Full text available from Materials Science Database: 07/01/1996 to 12/31/2010
Full text available from Science Database: 07/01/1996 to 12/31/2010
Ηλεκτρονική πηγή Επιστημονικό περιοδικό