@book { SavingEndangeredHeirsandEstates,
    title = "Saving Endangered Heirs and Estates",
    author = "Hugo G. {Walter}",
    year = "2020",
    publisher = "Peter Lang Verlag",
    address = "New York, United States of America",
    doi = "10.3726/b10827",
    url = "https://www.peterlang.com/document/1055218"
}