?url_ver=Z39.88-2004&rft_id=doi%3A10.1023%2FB%3AJOSE.0000005715.87363.13&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.au=Gruenthal%2C+Gottfried&rft.aulast=Gruenthal&rft.aufirst=Gottfried&rft.issue=4&rft.volume=7&rft.date=October+2003&rft.issn=1383-4649&rft.atitle=An+Mw+based+earthquake+Catalogue+for+central%2C+northern+and+northwestern+Europe+using+a+hierarchy+of+magnitude+conversions&rft.title=Journal+of+Seismology&rft.pages=507-531&rft.genre=article