Henk C. van der Plas The .sigma. adducts of 5-nitropyrimidines with liquid ammonia and their oxidation into aminonitropyrimidines [Electronic resource] / Henk C. van der Plas, V. N. Charushin, Beb Van Veldhuizen // Journal of Organic Chemistry. - 1983. - Vol. 48, № 8. - С. 1354-1357. - Режим доступа: http://pubs.acs.org/doi/abs/10.1021/jo00156a042. - (Дата обращения: 24.04.15)