@book { TheologiedesHerzens,
    title = "Theologie des Herzens",
    subtitle = "Die Erfahrung der Anwesenheit Gottes im Islam",
    author = "Hamid {Kasiri}",
    year = "2012",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Deutschland",
    url = "https://www.peterlang.com/document/1109265"
}