@book { DergrenzberschreitendeRechtsformwechselinderEuropischenUnion, title = "Der grenzüberschreitende Rechtsformwechsel in der Europäischen Union", author = "Sascha {Stiegler}", year = "2013", publisher = "Peter Lang Verlag", address = "Berlin, Germany", doi = "10.3726/978-3-653-03810-1", url = "https://www.peterlang.com/document/1047628" }