Hofman, Laurens Jan and Ruigrok, Elmer and Dost, Bernard and Paulssen, Hanneke  (2017) A Shallow Seismic Velocity Model for the Groningen Area in the Netherlands.  Journal of Geophysical Research: Solid Earth, 122 (10).  pp. 8035-8050. DOI: https://doi.org/10.1002/2017JB014419 <https://doi.org/10.1002/2017JB014419>