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[CALCULUS]. CARATHÉODORY, C. Variational Calculus and First-Order Partial Differential Equations, 1935; Treatises on the Calculus of Variations (Bernoulli, Euler, Lagrange, Legendre, Jacobi), 2 vols., 1894; BLISS, G. A. Calculus of Variations, 1932; KNESER, Adolf. Textbook of the Calculus of Variations, 1925; BURKHARDT, Heinrich. Lectures on the Elements of Differential and Integral Calculus and Their Application to the Description of Natural Phenomena, 1907; CZUBER, Emanuel. Lectures on Differential and Integral Calculus, 2 vols., 1912; NÖRLUND, N. E. Lectures on Differential Calculus, Berlin, 1924. A total of 9 works Provenance: library of Hans and Oscar BOLZA, then passed down through the family.
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