@book { ReligiseEntwicklunginKindheitundJugend,
    title = "Religiöse Entwicklung in Kindheit und Jugend",
    author = "Kalevi {Tamminen}",
    year = "1994",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1081122"
}