Mukanova, M., and K. Yerzhanov. “Stereochemistry of the Aminodiacetylenic Alcohols and Glycols of Tetrahydrothiopyran Row”. Chemical Bulletin of Kazakh National University, Vol. 65, no. 1, Dec. 2012, pp. 309-11, doi:https://doi.org/10.15328/chemb_2012_1309-311.