@book { Bachmusikpdagogischbetrachtet,
    title = "Bach – musikpädagogisch betrachtet",
    author = "Suzanne Cornelia {van Kempen}",
    year = "2011",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-00362-8",
    url = "https://www.peterlang.com/document/1054143"
}