@book { DerUnternehmensfhrungsvertrag, title = "Der Unternehmensführungsvertrag", author = "Florian {Böhm}", year = "2016", publisher = "Peter Lang Verlag", address = "Berlin, Germany", doi = "10.3726/978-3-653-06664-7", url = "https://www.peterlang.com/document/1050247" }