@article {De Grauwe 1988b, title = {Guillaume Apsel}, journal = {Dictionnaire d{\textquoteright}histoire et de g{\'e}ographie eccl{\'e}siastiques}, volume = {22}, year = {1988}, pages = {841}, keywords = {biographiae, Gulielmus Apsel de Breda O.Cart. (biographia)}, author = {De Grauwe, Jan} }