1. 6.03–1,2-Oxa/thia-4-azoles;Makhova,2008
2. 4.34 - Dioxazoles, Oxathiazoles and Dithiazoles,1984
3. 4.13 - 1,2-Oxa/thia-4-azoles;Khmelnitski,1996
4. Product Class 13: 1,2,3-Triazoles,2004
5. The bifurcate chalcogen bond: Some theoretical observations