Citation: Ben Yaich, H.; Jegaden, J.; Potel, M.; Sergent, M.; Rastogi, A.; Tournier, R. (1984). Nouveaux chalcogenures et chalcohalogenures a clusters tetraedriques Nb4 ou Ta4 _cod_database_code 1008284. Journal of the Less-Common Metals, 102, pp. 9-22.