Nguyen, Kiet A.; Gordon, Mark S.; Montgomery, John A. Jr.; Michels, H. Harvey (October 1994). "Structures, Bonding, and Energetics of N2O2 Isomers". The Journal of Physical Chemistry. 98 (40): 10072–10078. doi:10.1021/j100091a021. https://dr.lib.iastate.edu/bitstreams/be95a54e-5a0e-4578-9fb8-8853ba9bf311/download