@inbook {De Backer 1989, title = {Extracts of the chartae of the Carthusian general chapter for the Rhine Province (1609-1625)}, booktitle = {Analecta Cartusiana}, volume = {100:21[a]}, year = {1989}, pages = {5-32}, address = {Salzburg}, keywords = {cartae (1609-1625), Provincia Rheni (cartae)}, author = {De Backer, Christian} }