Ludwig Ahorner. “Fault-Plane Solutions and Source Parameters of the 1992 Roermond, the Netherlands, Mainshock and Its Stronger Aftershocks from Regional Seismic Data”. Netherlands Journal of Geosciences 73 (January 1, 1994): 199-214. Accessed April 7, 2026. https://njgjournal.nl/index.php/njg/article/view/12462.