@book {Rietschel1900,
	title = {Die Lehre vom Gemeindegottesdienst},
	series = {Lehrbuch der Liturgik},
	volume = {1},
	year = {1900},
	publisher = {Reuther \& Reichard},
	organization = {Reuther \& Reichard},
	address = {Berlin},
	url = {https://archive.org/details/lehrbuchderlitu00unkngoog},
	author = {Rietschel, Georg Chr.}
}
