3V. E. Palmour, C. B. Marcia, R. V. Robert. Costs of Owning, Borrowing, and Disposing of Periodical Publications Arlington, VA: Center for Naval Analysis, 1977.
4M. Getz. Economics: Document Delivery. The Bottom Line, 1991--92(5).
5M. Getz. Economice: Increasing the value of user Time.The Bottom Line, 1987, 1(2).
6B. P. Schauer. The Economics of Managing Library Service. Chicago and London: ASIS, 1990.
10Sirel I Y, Kauffmann P, Ozan E. Integration of Kano' s model into QFD for multiple produce design. IEEE Transactions on Engineering Management,2007,54 (2) :380 - 390.