Seismicity and seismic risk in the offshore North Sea area : proceedings of the NATO advanced research workshop, held at Utrecht, the Netherlands, June 1-4, 1982 / edited by A. Reinier Ritsema and Aybars Gürpinar. (NATO advanced study institutes series. Series C, Mathematical and physical sciences ; v. 99)
Seismicity and seismic risk in the offshore North Sea area : proceedings of the NATO advanced research workshop, held at Utrecht, the Netherlands, June 1-4, 1982 / edited by A. Reinier Ritsema and Aybars Gürpinar.
(NATO advanced study institutes series. Series C, Mathematical and physical sciences ; v. 99)