Gál, D., P. Szabó, F. Pekár, Éva Kerepeczki, and L. Váradi. “Experiments on the Nutrient Removal and Retention of an Integrated Pond System”. Acta Agraria Debreceniensis, no. 16, Dec. 2005, pp. 18-23, doi:10.34101/actaagrar/16/3283.