@misc
{TN_libero_mab2,
author = {
Brock, Gerald W.
},
title = {
A Study of Prices and Market Shares in the Computer Mainframe Industry: Comment
},
publisher = {University of Chicago Press},
isbn = {0021-9398},
isbn = {1537-5374},
year = {1979},
url = {
http://slubdd.de/katalog?TN_libero_mab2
}
}