Riemann, Georg Friedrich Bernhard,
Durege, Heinrich, 1821- ##*6,5115,31 Elements of the theory of functions of a complex variable, with especial reference to the methods of Riemann, Authorized trans, from the 4th
German ed., by George Egbert Fisher and Isaac J, Schwatt,.
Phila, Fisher &S, 1896, xiii, 288 pp, 80,