Iavorkovskii L.I., Mai L.A. (1961) Content of vitamin B12 in the cerebrospinal fluid. Voprosy Meditsinskoi Khimii, 7(1), 25-27.

Iavorkovskii L.I. et al. Content of vitamin B12 in the cerebrospinal fluid // Voprosy Meditsinskoi Khimii. - 1961. - V. 7. -N 1. - P. 25-27.

Iavorkovskii L.I. et al., "Content of vitamin B12 in the cerebrospinal fluid." Voprosy Meditsinskoi Khimii 7.1 (1961): 25-27.

Iavorkovskii, L. I., Mai, L. A. (1961). Content of vitamin B12 in the cerebrospinal fluid. Voprosy Meditsinskoi Khimii, 7(1), 25-27.