//-->
Getreidefieber : US-Agrarkrise, Konzernmacht u. Welternährung
Wessel, James, (1987)
The simulation of concentration and diversity measures from firm-level financial data
Hirschberg, Joseph G., (1995)
Concentration change and countervailing power in the US food manufacturing industries
Connor, John Murray, (1996)
Food Manufacturing Activities of the Largest Agricultural Cooperatives: Market Power and Strategic Behavior Implications
Rogers, Richard T., (1990)
The Role of Advertising in Changing Concentration of Manufacturing Industries
Mueller, Willard F., (1978)
Changes in Market Concentration of Manufacturing Industries, 1947 -1977
Mueller, Willard F., (1983)