2
Έκδοση 1983
...Electronic journals....
Full text available from ABI/INFORM Global: 01/01/1988 to 06/30/1989
Full text available from Accounting & Tax Database: 01/01/1988 to 06/30/1989
Full text available from Science Database: 01/01/1988 to 06/30/1989
Ηλεκτρονική πηγή Πρακτικό Συνεδρίου
4
Έκδοση 1990
...Electronic journals....
Full text available from ABI/INFORM Global: 06/01/1990 to 06/01/1992
Full text available from Accounting & Tax Database: 06/01/1990 to 06/01/1992
Full text available from Science Database: 06/01/1990 to 06/01/1992
Ηλεκτρονική πηγή Πρακτικό Συνεδρίου