Mathematics

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.

DENBOW, CARL H. AND VICTOR GOEDICKE.

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

KOWALEWSKI, GERHARD.

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

KOWALEWSKI, GERHARD.

Lpz., 1933.

RUTHERFORD, D.E.

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

JACOBI, C.G.J.

(Berlin, G. Reimer, 1829).

POINCARÉ, HENRI.

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

OTTO, J.C.F.

Berlin, Jonqs Verlagsbuchhandlung, 1833.

LAMBERT, JOHANN HEINRICH [NON-EUCLIDEAN GEOMETRY].

(Berlin, Haude & Spener, 1770).

RUSSELL, BERTRAND.

London, George Allen & Unwin, (1950).

LORENSEN, PAUL.

Berlin, Springer, 1955.

BELL, E.T.

N.Y., McGraw-Hill, 1940.

SCHOLZ, HEINRICH & GISBERT HASENJAEGER.

Berlin & Göttingen & Heidelberg, Springer-Verlag, 1961.

BETH, E. W.

Paris, Gauthier-Villards, 1950.