@book { IrmfriedEberl,
    title = "Irmfried Eberl",
    subtitle = "«Euthanasie»-Arzt und Kommandant von Treblinka",
    author = "Michael {Grabher}",
    year = "2006",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101149"
}