@book{7000,
	author = {Pieper, Josef,},
	title = {Thesen zur sozialen Politik;},
	publisher = {J. Knecht},
	year = {[1947]},
	address = {Frankfurt am Main,},
	edition = {4. Aufl.},
	note = {First pub. in 1933 under title: Thesen zur Gesellschaftspolitik.}
}