M. C. Pöppelreiter, A. Simone, and G. Hoetz. 2004. “Reservoir Characteristics of Intracontinental Carbonate Ramp Deposits-Upper Muschelkalk, Middle Triassic, NE Netherlands”. Netherlands Journal of Geosciences 83 (March):1-15. https://doi.org/10.1017/S0016774600020424.