@book{1278,
	author = {Opderbecke, Adolf and Wittenbecher, Holm},
	title = {Der Steinmetz},
	publisher = {Voigt},
	year = {1912},
	series = {Das Handbuch des Bautechnikers},
	address = {Leipzig},
	edition = {2. verbesserte und vermehrte Auflage},
	url = {https://d-nb.info/366982850/04}
}