Robuta

https://www.rijksmuseum.nl/en/collection/object/Portret-van-Karl-Friedrich-Ludwig-Georg-von-Uttenhoven--632f3417eb4a9b0d621d96c43dda15ad Portret van Karl Friedrich Ludwig Georg von Uttenhoven - Rijksmuseum karl friedrich ludwig portret van georg von https://archive.org/details/theoryfunctions00rasorich Theory of functions of a complex variable : Burkhardt, Heinrich Friedrich Karl Ludwig, 1861-1914 :... theory of functions