Reedijk, Bas, Tamara Eggeling, Pieter Bakker, Robert Jacobs, and Markus Muttray. “HYDRAULIC STABILITY AND OVERTOPPING PERFORMANCE OF A NEW TYPE OF REGULAR PLACED ARMOR UNIT”. Coastal Engineering Proceedings 1, no. 36 (December 30, 2018): papers.111. Accessed February 18, 2020. https://icce-ojs-tamu.tdl.org/icce/index.php/icce/article/view/8343.