@book { OptionsanleihenimRechtderGmbH,
    title = "Optionsanleihen im Recht der GmbH",
    author = "Jonas {Pöttgen}",
    year = "2022",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b20173",
    url = "https://www.peterlang.com/document/1288807"
}