Brynjolfsson, Erik (1993). The productivity paradox of information technology. Communications of the ACM. 36 (12): 66—77. doi:10.1145/163298.163309. ISSN0001-0782.
Brynjolfsson, Erik (1993). The productivity paradox of information technology. Communications of the ACM. 36 (12): 66—77. doi:10.1145/163298.163309. ISSN0001-0782.