@book { ErnstGraser18601929,
    title = "Ernst Graser (1860–1929)",
    subtitle = "Ein Erlanger Chirurgenleben zwischen Katheder und Operationssaal",
    author = "G. Michael {Wittmann}",
    year = "2003",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1095949"
}