Abnormal nucleosides in 5-methyl-6-nitro-1,2,4-triazolo[1,5-a]pyrimidin-7-ones / V. V. Voronin, D. V. Fominykh, E. N. Ulomsky [et al.] // International Memorial I. Postovsky Conference on Organic Chemistry: Program and Abstracts, March 17-20, 1998. - Ekaterinburg, 1998. - P. 141.