@book { DieStellungbehinderterMenschenimErbrecht,
    title = "Die Stellung behinderter Menschen im Erbrecht",
    author = "Quirin {Ullmann}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b13489",
    url = "https://www.peterlang.com/document/1110534"
}