Ringer, A. L.; Sherrill, C. D.; King, R. A.; Crawford, T. D. (). „Low-lying singlet excited states of isocyanogen”. International Journal of Quantum Chemistry. 106 (6): 1137–1140. Bibcode:2008IJQC..108.1137R. doi:10.1002/qua.21586.
Ringer, A. L.; Sherrill, C. D.; King, R. A.; Crawford, T. D. (). „Low-lying singlet excited states of isocyanogen”. International Journal of Quantum Chemistry. 106 (6): 1137–1140. Bibcode:2008IJQC..108.1137R. doi:10.1002/qua.21586.