2
Έκδοση 1951
Full text available from Computer Science Database: 12/01/1997 to 06/30/2018
Full text available from Engineering Database: 12/01/1997 to 06/30/2018
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
3
Full text available from Computer Science Database: 01/01/2008 to 07/31/2014
Full text available from Engineering Database: 01/01/2008 to 07/31/2014
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
4
Έκδοση 1966
Full text available from Advanced Technologies & Aerospace Database: 01/01/1997 to 1 year ago
Full text available from Computer Science Database: 01/01/1997 to 1 year ago
Full text available from Engineering Database: 01/01/1997 to 1 year ago
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
6
Έκδοση 1984
Full text available from East Europe, Central Europe Database: 01/01/2010 to present
Full text available from Engineering Database: 01/01/2010 to present
Ηλεκτρονική πηγή Περιοδική έκδοση
7
Full text available from Engineering Database: 03/01/2016 to 1 year ago
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
8
Έκδοση 1978
Full text available from ABI/INFORM Global: 03/01/1999 to 1999
Full text available from Science Database: 03/01/1999 to 1999
Full text available from Advanced Technologies & Aerospace Database: 03/01/1999 to 12/31/1999
Ηλεκτρονική πηγή Επιστημονικό περιοδικό
9
Έκδοση 2008
Full text available from Education Database: 01/01/2013 to 09/30/2016
Full text available from Engineering Database: 01/01/2013 to 09/30/2016
Full text available from Latin America & Iberia Database: 01/01/2013 to 09/30/2016
Ηλεκτρονική πηγή Επιστημονικό περιοδικό