@book{ title = "Franciscus van Assisi", author = "Hesse, Hermann,Krans, Alfred", year = "2003", publisher = "Aspekt", address = "Soesterberg", language = "dut", howpublished = "print", isbn = "9059111273", keywords = "Biografie,Franz,Biographie,Hesse, Hermann", pages = "20 cm", }