Tsvetkova I.V. (1963) Neuraminic acid in the body of animals. Voprosy Meditsinskoi Khimii, 9(2), 115-124.
et al. Neuraminic acid in the body of animals // Voprosy Meditsinskoi Khimii. - 1963. - V. 9. -N 2. - P. 115-124.
et al., "Neuraminic acid in the body of animals." Voprosy Meditsinskoi Khimii 9.2 (1963): 115-124.
Tsvetkova, I. V. (1963). Neuraminic acid in the body of animals. Voprosy Meditsinskoi Khimii, 9(2), 115-124.