@book{8011,
	author = {Knopp, Konrad, and Bagemihl, Frederick,},
	title = {Theory of functions,},
	publisher = {Dover publications,},
	year = {1945-47.},
	address = {New York ;},
	note = {Part 1 is translated, with minor changes in text, from the 5th German edition; pt. 2 is translated from the 4th German edition.}
}