De Kroon, G H J, and M H J Mommers. “Breeding of the Water Rail Rallus Aquaticus in Cladium Mariscus Vegetation”. Ornis Svecica 12, no. 1–2 (April 1, 2002): 69–74. Accessed June 1, 2025. https://journals.lub.lu.se/os/article/view/22838.