Mathematics

HANSEN, MORRIS H., WILLIAM N. HURWITZ, WILLIAM G. MADOW.

N.Y., Wiley & Sons, (1953).

HILBERT, DAVID.

Darmstadt, 1964.

COUTURAT, LOUIS.

Paris, Felix Alcan, 1905.

RIEMANN, BERNHARD.

Göttingen: Verlag der Dieterichschen Buchhandlung, 1860.

HALL, A. RUPERT.

Cambridge, London etc., Cambridge University Press, (1980).

BAIRE, RENÉ.

Paris, Gauthier-Villars, 1905.

WEYL, HERMANN.

Leipzig und Berlin, B.G. Teubner, 1913.

LA GRANGE (LAGRANGE), JOSEPH LOUIS. - MAXIMA AND MINIMA.

(Berlin, Haude et Spener, 1767 and Berlin, Ch. Fr. Voss, 1774).

POINCARÉ, HENRI.

(Berlin, Uppsala & Stockholm, Paris, 1895).

KLEIN, FELIX.

(Leipzig, B.F. Teubner, 1871 a. 1873).

NEYMAN, J. - DAVID, F.N. (EDT.).

London, John Wiley & Sons, 1966.

SZABO, ARPAD.

München, R. Oldenburg, 1969.

ROSSER, J. BARKLY.

New York, McGraw-Hill Book Comp., 1953

KOBRINSKII, N. E. & B. A. TRAKHTENBROT.

Amsterdam, North-Holland Publ. Comp., 1965.

CHANDRASEKHAR, SUBRAMANYAN.

Lancaster, American Physical Society, 1943.

KLEIN, FELIX.

Leipzig, B.G.Teubner, 1871 u. 1873.

CAYLEY, ARTHUR & GIUSEPPE VERONESE.

Berlin, G. Reimer, 1846. - Leipzig, B.G. Teubner, 1881.

KIRCHHOFF, GUSTAVE ROBERT - KIRCHHOFF'S HYDRODYNAMICS.

Berlin, G. Reimer, 1870.