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| У | | O-40 |
Okuguchi, K.
The theory of oligopoly with multi-product firms [Текст] / K. Okuguchi, F. Szidarovszky. – Berlin : Springer-Verlag, 1990. – 169 p. – (Lecture notes in economics and mathematical systems; 342).
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| ISBN 3-540-52567-X | ББК У.в611+У012.1 |
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