Ludwig Ahorner (1994) “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, pp. 199-214. Available at: https://njgjournal.nl/index.php/njg/article/view/12462 (Accessed: 8April2026).