@book { theballseemedtokeeprolling,
    title = "«… the ball seemed to keep rolling …»",
    author = "Martina {Lampert} and Günther {Lampert}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03535-3",
    url = "https://www.peterlang.com/document/1044535"
}