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The outstanding negotiator : how to develop your arguing power
Godefroy, Christian H., (1998)
Das Harvard-Konzept : der Klassiker der Verhandlungstechnik
Fisher, Roger, (2004)
A straightforward guide to effective negotiating
Blanchard, David, (1998)
The power of nice : how to negotiate so everyone wins--especially you!
Shapiro, Ronald M., (2001)