Kluiving , S. J., G. Aalbersberg, R. T. van Balen, and C. Kasse. “Glacial Geology of Saalian Relief Around Midwolda, Eastern Groningen, the Netherlands”. Netherlands Journal of Geosciences, vol. 97, Dec. 2018, pp. 261-82, doi:10.1017/njg.2018.16.