Elias , E. P., A. J. van der Spek, and M. Lazar. “The ‘Voordelta’, the Contiguous Ebb-Tidal Deltas in the SW Netherlands: Large-Scale Morphological Changes and Sediment Budget 1965–2013; Impacts of Large-Scale Engineering”. Netherlands Journal of Geosciences, vol. 96, Nov. 2016, pp. 233 -259, doi:10.1017/njg.2016.37.