Cyclobutadiene- and Benzocyclobutadiene-Iron Tricarbonyl Complexes G. F. Emerson, L. Watts, R. Pettit; J. Am. Chem. Soc.; 1965; 87(1); 131-133. First Page
Cyclobutadiene L. Watts, J. D. Fitzpatrick, R. Pettit, J. Am. Chem. Soc.; 1965; 87(14); 3253-3254. Abstract
Evan E. Bolton; Yanli Wang; Paul A. Thiessen; Stephen H. Bryant (2008). „Chapter 12 PubChem: Integrated Platform of Small Molecules and Biological Activities”. Annual Reports in Computational Chemistry. 4: 217—241. doi:10.1016/S1574-1400(08)00012-1.
Revisit of the Dessy-White Intramolecular Acetylene-Acetylene [2 + 2] Cycloadditions Chung-Chieh Lee, Man-kit Leung, Gene-Hsiang Lee, Yi-Hung Liu, and Shie-Ming Peng, J. Org. Chem.; 2006; 71(22) pp 8417 - 8423; (Article) . doi:10.1021/jo061334v.Недостаје или је празан параметар |title= (помоћ)