@book { DieGbRinderInsolvenz,
    title = "Die GbR in der Insolvenz",
    author = "Markus Jasper {Stahlschmidt}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1097395"
}