@book { ArztundPraxisabgabe, title = "Arzt und Praxisabgabe", author = "Peter {Wigge} and Georg {Kirschner}", year = "2016", publisher = "Deutscher Ärzteverlag", address = "Köln, Deutschland", doi = "10.47420/9783769135992", url = "https://deutscheraerzteverlag.openpublishing.com/document/390663" }