LUPTÁKOVÁ, A. ., . I. . KOTULIČOVÁ, M. . BÁLINTOVÁ, and ŠTEFAN . DEMČÁK. “Bacterial Reduction Of Barium Sulphate By Sulphate-Reducing Bacteria”. Nova Biotechnologica Et Chimica, vol. 14, no. 2, Dec. 2015, pp. 135–140, doi:10.1515/nbec-2015-0022.