@article{ploetz1981-1982strukturwandel, author = {Ploetz, Robert}, interhash = {c33783a6c82e427ab79098eb291b8cc2}, intrahash = {c6b6fa25b8910657bd04d0e4cf577f59}, journal = {Rheinisch-westfälische Zeitschrift für Volkskunde}, pages = {129-151}, title = {Strukturwandel der peregrinatio im Hochmittelalter}, volume = {36-37}, year = {1981-1982} }