Mathematics

HELMERT, F.R.

Leipzig, B.G. Teubner, 1872.

MEADOW, CHARLES T.

N.Y., London, Wiley-Interscience, (1970).

CZUBER, EMANUEL.

Leipzig, B.G. Teubner, 1891.

CLIFFORD, WILLIAM KINGDON.

N.Y., Knopf, 1946.

GAUSS, CARL FRIEDRICH.

Göttingen, Dieterich, 1828.

TARSKI, ALFRED.

Warszawa, 1933.

LEUPOLD, JACOB. & ERNST SCHEFFLER.

Leipzig: Christoph Zunkel and Bernhard Christoph Breitkopf, 1727-1739.

CHWISTEK, LEON.

London, Routledge & Kegan Paul, (1949).

TIETZE, HEINRICH.

N.Y., Graylock Press, 1965.

LUNDBERG, OVE.

Uppsala, Almqvist & Wiksell, 1940.

HJELTE, C.

Kjøbenhavn, Schultz, 1838.

EULER, LEONHARD.

(Berlin, Haude et Spener, 1750).

POINCARÉ, HENRI.

(Berlin, Uppsala & Stockholm, Paris, 1892 a. 1897.

LALESCO, TRAJAN.

Paris, Hermann & Fils, 1912.

GUSTAFSON, KARL E.

New York, Dover Publ., 1999.

MAXWELL, E. A.

Cambridge at the University Press, 1959.

NEVILLE, ERIC HAROLD.

Oxford, Clarendon Press, 1951.

TATE, THOMAS.

London, Longmans, Green, and Co., 1881.