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Nakano, K.; Tatsumi, G.; Nazaki, K. (2007). "Synthesis of Sulfur-Rich Polymers: Copolymerization of Episulfide with Carbon Disulfide by Using [PPN]Cl/(salph)Cr(III)Cl System". J. Am. Chem. Soc. 129 (49): 15116–15117. Bibcode:2007JAChS.12915116N. doi:10.1021/ja076056b. PMID17999507.
Nakano, K.; Tatsumi, G.; Nazaki, K. (2007). "Synthesis of Sulfur-Rich Polymers: Copolymerization of Episulfide with Carbon Disulfide by Using [PPN]Cl/(salph)Cr(III)Cl System". J. Am. Chem. Soc. 129 (49): 15116–15117. Bibcode:2007JAChS.12915116N. doi:10.1021/ja076056b. PMID17999507.
Adam, Waldemar; Bargon, Rainer M. (2004). "Synthesis of Thiiranes by Direct Sulfur Transfer: The Challenge of Developing Effective Sulfur Donors and Metal Catalysts". Chemical Reviews. 104 (1): 251–262. doi:10.1021/cr030005p. PMID14719976.
Nakano, K.; Tatsumi, G.; Nazaki, K. (2007). "Synthesis of Sulfur-Rich Polymers: Copolymerization of Episulfide with Carbon Disulfide by Using [PPN]Cl/(salph)Cr(III)Cl System". J. Am. Chem. Soc. 129 (49): 15116–15117. Bibcode:2007JAChS.12915116N. doi:10.1021/ja076056b. PMID17999507.