Balayan, T. V., et al. “DETERMINATION OF CONTENTS AND STABILITY OF CHROME(III) WITH TARTARIC ACID IN WATER LIQUID ”. Proceedings of the YSU B: Chemical and Biological Sciences, vol. 44, no. 1 (221), Feb. 2010, pp. 18-22, doi:10.46991/PYSU:B/2010.44.1.018.