@book { EdvardGriegsPeerGyntop23,
    title = "Edvard Griegs «Peer Gynt» (op. 23)",
    author = "Stephanie {van Heesch}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101877"
}