@book { DasRechtderGesellschafterFremdkapitalfinanzierung,
    title = "Das Recht der Gesellschafter-Fremdkapitalfinanzierung",
    author = "Julia {Gerzen}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04729-5",
    url = "https://www.peterlang.com/document/1048742"
}