@book { DieverdeckteSacheinlageimRechtderGmbH,
    title = "Die verdeckte Sacheinlage im Recht der GmbH",
    author = "Matthias {Zick}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1135560"
}