Lewis, Gilbert N. The Magnetism of Oxygen and the Molecule O2. Journal of the American Chemical Society. September 1924, 46 (9): 2027–2032. doi:10.1021/ja01674a008.
Hernández-Lamoneda, R.; A. Ramírez-Solís. Reactivity and electronic states of O4 along minimum energy paths. Journal of Chemical Physics. September 2000, 113 (10): 4139–4145. doi:10.1063/1.1288370.引文使用过时参数coauthors (帮助)
Røeggen, I.; E. Wisløff Nilssen. Prediction of a metastable D3h form of tetra oxygen. Chemical Physics Letters. May 1989, 157 (5): 409–414. doi:10.1016/0009-2614(89)87272-0.引文使用过时参数coauthors (帮助)