Zupka, S. ., A. . Vollmannová, Ľuboš . Harangozo, M. . Slávik, and M. . Medvecký. “Risk of Contamination of Wild Berries from Upper Orava Region by Cadmium”. Potravinarstvo Slovak Journal of Food Sciences, vol. 10, no. 1, Jan. 2016, pp. 126-31, doi:10.5219/546.