@book { UrbanChristianSpirituality,
    title = "Urban Christian Spirituality",
    author = "Knut {Alfsvåg} and Thor {Strandenæs}",
    year = "2014",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-05181-0",
    url = "https://www.peterlang.com/document/1050422"
}