@book{ title = "Hadewych en Heer Hendrik van Breda", author = "Boeren, Petrus C.", year = "1962", publisher = "Brill", address = "Leiden", language = "dut", keywords = "Hadewijch, Beguine <13th cent>,Hendrik van Breda,Hadewijch,Hendrik ", series = "Bijdragen tot de Nederlandse taal-en letterkunde, 2", }