@book{39445,
	author = {Dörrie, Heinrich},
	title = {100 great problems of elementary mathematics},
	publisher = {Dover Publications},
	year = {[1965]},
	address = {New York},
	note = {"A new translation of the unabridged text of the fifth edition ... published by the Physica-Verlag, Würzburg, Germany, in 1958 under the title Triumph der Mathematik: Hundert berühmte Probleme aus zwei Jahrtausenden mathematischer Kultur."}
}