@book { DieTypologieunddieGeschichtedeschristlichenAltars, title = "Die Typologie und die Geschichte des christlichen Altars", author = "Peter {Liptau} and David {Kiefer}", year = "2008", publisher = "GRIN Verlag", address = "München, Germany", doi = "10.3239/9783640138869", url = "https://www.hausarbeiten.de/document/113471" }