Milberg, P., Gezelius, L., Blindow, I., Nilsson, L., & Tyrberg, T. (2002). Submerged vegetation and the variation in the autumn waterfowl community at Lake Tåkern, southern Sweden. Ornis Fennica, 79(2), 72–81. Retrieved from https://ornisfennica.journal.fi/article/view/133573