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The theoretical postulates for models of decentralized socialist planning stem from the thought of Karl Kautsky , Rosa Luxemburg , Nikolai Bukharin and Oskar R. Lange .
 Karl Kautsky, Rosa Luxemburg, Nikolai Bukharin, Oskar R. Lange
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Answer:
 Karl Kautsky, Rosa Luxemburg, Nikolai Bukharin, Oskar R. Lange