Gaberman V.V. (1957) Ultramicromethod of determination of ammonia. Voprosy Meditsinskoi Khimii, 3(6), 464-469.

et al. Ultramicromethod of determination of ammonia // Voprosy Meditsinskoi Khimii. - 1957. - V. 3. -N 6. - P. 464-469.

et al., "Ultramicromethod of determination of ammonia." Voprosy Meditsinskoi Khimii 3.6 (1957): 464-469.

Gaberman, V. V. (1957). Ultramicromethod of determination of ammonia. Voprosy Meditsinskoi Khimii, 3(6), 464-469.