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Roman M. Balabin. Tautomeric equilibrium and hydrogen shifts in tetrazole and triazoles: Focal-point analysis and ab initio limit. J. Chem. Phys., 2009, s. 154307. DOI: 10.1063/1.3249968. PMID 20568864.
Lakshman Mahesh K., Singh Manish K., Parrish Damon, Balachandran Raghavan, Day Billy W.. Azide−Tetrazole Equilibrium of C-6 Azidopurine Nucleosides and Their Ligation Reactions with Alkynes. The Journal of Organic Chemistry, 2010, s. 2461–2473. DOI: 10.1021/jo902342z. PMID 20297785.