“AMPEROMETRIC DETERMINATION OF TELLURIUM (IV) BY N,N-DIPHENYL- AND N,N’-DIPHENYLTHIOUREAS”. Proceedings of the YSU B: Chemical and Biological Sciences, vol. 38, no. 1 (203), Dec. 2003, pp. 137-40, https://doi.org/10.46991/PYSUB.2004.38.1.137.