Mathematics

WESSEL, CASPAR. - THE FIRST SYSTEMATICAL THREATMENT OF COMPLEX NUMBERS.

Kiøbenhavn, Johan Rudolph Thiele, (1797) 1799.

SVERDRUP, ERLING.

Bergen, 1964.

GUDERMANN, CHRISTOPH.

Berlin, G. Reimer, 1838.

(BIEBERSTEIN, ERNST von).

Züllichau und Freistadt, Darnmann, 1801.

HAMEL, GEORG.

Beræin, Göttingen, 1949.

KOWALEWSKI, GERHARD.

Leipzig, Berlin, Teubner, 1923.

HARDY, G.H.

Cambridge, University Press, 1910.

HELLWIG, GÜNTER.

Stuttgart, 1960.

COURANT, R.

Berlin, J. Springer, 1930-29.

SCHOENFLIES, A.

Berlin, J. Springer, 1925.

COMPUTERS - LEE, JOHN A.N.

N.Y., Reinhold, (1966).

RAY, WILLIAM O.

New Jersey, (1988).

TIETZE, HEINRICH.

München, Biederstein Verlag, 1949.

VIVANTI, G.

leipzig, Teubner, 1906.

MIKUSINSKI, JAN.

London, N.Y., (1959).

BETH, EVERT W.

Dordrecht, (1962).

FORSYTHE, GEORGE E. AND WOLFGANG R. WASOW.

N.Y., London, (1960).

ROBINSON, ABRAHAM.

Amsterdam, North-Holland, 1951.