@book { DenHimmeloffenlassen,
    title = "Den Himmel offen lassen",
    subtitle = "Der christliche Glaube in der Herausforderung des wissenschaftlichen Weltbildes- 11. Ökumenische Sommerakademie Kremsmünster 2009",
    author = "Severin {Lederhilger}",
    year = "2010",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1136316"
}