@book { TheatreforEarlyYears,
    title = "Theatre for Early Years",
    author = "Wolfgang {Schneider}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-01263-7",
    url = "https://www.peterlang.com/document/1054139"
}