Rajachandrasekhar, V., B. George Vineel, S. Venkataiaha, and P.K. Dubey. 2014. “Synthesis of N-(3,4,10,10a-Tetrahydro-2H-1,9-Dioxa-4a-Azaphenanthrene- 6-yl)alkyl and Aryl Sulfonamides”. Asian Journal of Chemistry 26 (16):5263-67. https://doi.org/10.14233/ajchem.2014.17017.