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Full text available from ABI/INFORM Global: 07/01/1993 to 12/31/2001
Full text available from Accounting & Tax Database: 07/01/1993 to 07/31/2001
Full text available from ABI/INFORM Global: 01/01/2016 to present
Ηλεκτρονική πηγή Επιστημονικό περιοδικό