00443nas a2200121 4500008003900000245011300039210006900152300000900221490000600230100002200236700002000258856004300278 2017 d00aChurch Foundation and Parish Formation in Frisia in the Tenth and Eleventh Centuries. A Planned Development?0 aChurch Foundation and Parish Formation in Frisia in the Tenth an a1-550 v41 aLangen, Gilles, J1 aMol, J.A.(Hans) uhttp://contactgroepsignum.eu/node/4842