Rosada, M. V., N. Y. Bevz, and V. A. Georgiyants. “Development and Validation of the Method for Determination of Related Impurities in Riboxin Tablets”. Journal of Organic and Pharmaceutical Chemistry, vol. 13, no. 4(52), Dec. 2015, pp. 62-67, doi:10.24959/ophcj.15.863.