@book { UrkundenderStadtBeeskowinRegesten12721649, title = "Urkunden der Stadt Beeskow in Regesten (1272-1649)", subtitle = "Bearbeitet von Friedrich Beck", author = " {Anonym}", year = "2003", publisher = "Peter Lang Verlag", address = "Berlin, Germany", doi = "10.3726/b19387", url = "https://www.peterlang.com/document/1157004" }