Zalewska, Tamara, et al. “Heavy Metals and Cs Levels in Macrophytes and Temporal Distribution in Sediments – Application for Estuarine Environment Status Assessment (Vistula Lagoon – Southern Baltic)”. Oceanological and Hydrobiological Studies, vol. 49, no. 1, Mar. 2020, pp. 68-80, https://czasopisma.bg.ug.edu.pl/index.php/oandhs/article/view/7754.