@book { StilwandelimEiskunstlauf,
    title = "Stilwandel im Eiskunstlauf",
    author = "Matthias {Hampe}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1115026"
}