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Fachinformation online : ein Überblick über Online-Datenbanken unter besonderer Berücksichtigung von Wirtschaftsinformationen
Staud, Josef L., (1993)
The electronic business information sourcebook
Wasik, John F., (1987)
Competitive intelligence in the computer age
Vella, Carolyn M., (1987)
Commercial credit and central place function in thirteenth-century Ypres
Nicholas, David, (2007)
Literature and bibliometrics
Nicholas, David, (1978)
Online use and end‐users in media and advertising: an overview
Harris, Kevin, (1986)