Galkina E.I., Zabgorodnii S.F. (1963) Determination of calcium and magnesium in blood serum using sodium tripolyphosphate. Voprosy Meditsinskoi Khimii, 9(2), 207-209.

Galkina E.I. et al. Determination of calcium and magnesium in blood serum using sodium tripolyphosphate // Voprosy Meditsinskoi Khimii. - 1963. - V. 9. -N 2. - P. 207-209.

Galkina E.I. et al., "Determination of calcium and magnesium in blood serum using sodium tripolyphosphate." Voprosy Meditsinskoi Khimii 9.2 (1963): 207-209.

Galkina, E. I., Zabgorodnii, S. F. (1963). Determination of calcium and magnesium in blood serum using sodium tripolyphosphate. Voprosy Meditsinskoi Khimii, 9(2), 207-209.