Friedland, S. (1976). Nonoscillation, disconjugacy and integral inequalities. American Mathematical Society.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रFriedland, Shmuel. Nonoscillation, Disconjugacy and Integral Inequalities. Providence, Rhode Island: American Mathematical Society, 1976.
एमएलए (9वां संस्करण) प्रशस्ति पत्रFriedland, Shmuel. Nonoscillation, Disconjugacy and Integral Inequalities. American Mathematical Society, 1976.
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