Klimenko, L. Y., S. M. Trut, T. A. Kostina, and S. M. Poluyan. “Development and Validation of GLC/MS-Procedure of Doxylamine Quantitative Determination”. Journal of Organic and Pharmaceutical Chemistry, vol. 17, no. 2(66), June 2019, pp. 52-62, doi:10.24959/ophcj.19.974.