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.

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).

WIEDEMANN, E. und F. HAUSER.

Halle, Max Niemeyer, 1918.

HEINE, E.

Berlin, Georg Reimer, 1861.

CAYLEY, ARTHUR.

Cambridge, Deighton, Bell and Co., 1876.

TWOMEY, S.

New York, Dover Publ., 1996.

BECK, ANATOLE.

Berlin, Heidelberg etc., Springer Verlag, 1974.

ROTHE, R., F. OLLENDORFF, AND K. POHLHAUSEN (HRSG.).

Berlin, Springer, 1931.

FRÖHLICH, H.

Oxford, Clarendon, 1986.

PAIN, H.J.

London, N.Y., John Wiley & Sons, (1976).

ZERMELO, ERNST FRIEDRICH FERDINAND.

Leipzig, B.G. Teubner, 1904.

CARNAP, RUDOLF.

(Chicago, 1965).