Mathematics

ACKERMANN, WILHELM.

Berlin, Julius Springer, 1925.

MACDUFFEE, C.C.

N.Y., Chelsea Publ. Co., 1946.

MAGNUS, W. UND FRITZ OBERHETTINGER.

Berlin, Springer, 1943.

BROGGI, HUGO.

Leipzig und Berlin, Teubner, 1911.

BOWLEY, ARTHUR L.

London, 1926.

TSCHUPROW (CHUPROW), A.A.

Leipzig, Berlin, B.G. Teubner, 1925.

CZUBER, EMANUEL.

Wien, Seidel & Sohn, 1921.

KOWALEWSKI, GERHARD.

Lpz., 1933.

DENBOW, CARL H. AND VICTOR GOEDICKE.

N.Y., Harper & Row, (1959).

KOWALEWSKI, GERHARD.

Leipzig, 1933 (Lithoprinted by Edwards Brothers, 1944).

OTTO, J.C.F.

Berlin, Jonqs Verlagsbuchhandlung, 1833.

HARKNESS, JAMES and FRANK MORLEY.

London a. N.Y., Macmillan and Co., 1893.

RUTHERFORD, D.E.

Edinborgh a. London, Oliver & Boyd, (1965).

POINCARÉ, HENRI.

(Berlin, Uppsala & Stockholm, Paris, Almqvist & Wiksell, 1897).

LAMBERT, JOHANN HEINRICH [NON-EUCLIDEAN GEOMETRY].

(Berlin, Haude & Spener, 1770).

RUSSELL, BERTRAND.

London, George Allen & Unwin, (1950).

LORENSEN, PAUL.

Berlin, Springer, 1955.

BOCHNER, SALOMON.

Princeton, University Press, 1966.