Tsvetkova I.V., Kozina A.B., Rozenfel'd E.L., Osipova G.N. (1978) Biochemical diagnosis of gangliosidosis GM1. Voprosy Meditsinskoi Khimii, 24(4), 566-569.

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Tsvetkova I.V. et al., "Biochemical diagnosis of gangliosidosis GM1." Voprosy Meditsinskoi Khimii 24.4 (1978): 566-569.

Tsvetkova, I. V., Kozina, A. B., Rozenfel'd, E. L., Osipova, G. N. (1978). Biochemical diagnosis of gangliosidosis GM1. Voprosy Meditsinskoi Khimii, 24(4), 566-569.