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The effects of entry in an oligopoly with multi-product firms
Szidarovszky, F., (1991)
On the uniqueness of equilibrium in Cournot oligopoly with product differentiation
Szidarovszky, F., (1992)
On the existence and uniqueness of equilibrium in Cournot oligopoly with product differentiation
Szidarovszky, F., (1990)