Umirov, Mukhriddin, et al. “Molecular and Crystal Structure Characteristics of 2-Phenylaminotetrahydro-1,3-Thiazepine Hydrochloride and 2-Phenyliminohexahydro-1,3-Thiazepine”. European Journal of Chemistry, vol. 14, no. 1, Mar. 2023, pp. 9-15, doi:10.5155/eurjchem.14.1.9-15.2345.