@book{724,
	author = {Becker, Otfrid, and Deichgräber, Karl,},
	title = {Plotin und das Problem der geistigen Aneignung,},
	publisher = {W. de Gruyter,},
	year = {1940.},
	address = {Berlin,},
	note = {The author's Habilitationsschrift, Göttingen, cf. p. [107]}
}