Mathematics

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.

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).

MATHEMATICAL REVIEWS. VOLS. 13-29.

London & Beccles, 1952-65.

MATHEMATICA SCANDINAVICA. VOLS. 1-37.

Coph., 1953-75.

MATHEMATICA SCANDINAVICA. VOLS. 1-55.

Coph., 1953-84.

DOLEZEL, LUBOMIR AND RICHARD W. BAILEY.

N.Y., 1969.

KOWALEWSKI, GERHARD.

Berlin, 1954.

BONOLA, ROBERTO.

leipzig u. Berlin, teubner, 1908.