Summer School Modern Methods of Optimization (1990 : University of Bayreuth) & Krabs, W. (1992). Modern methods of optimization. Springer-Verlag.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSummer School Modern Methods of Optimization (1990 : University of Bayreuth) और Werner Krabs. Modern Methods of Optimization. Berlin: Springer-Verlag, 1992.
एमएलए (9वां संस्करण) प्रशस्ति पत्रSummer School Modern Methods of Optimization (1990 : University of Bayreuth) और Werner Krabs. Modern Methods of Optimization. Springer-Verlag, 1992.
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