Shaposhnikov A.M., Skachkov M.M. (1974) Phenylalanine hydroxylase activity in the livers of patients with phenylketonuria. Voprosy Meditsinskoi Khimii, 20(6), 656-660.

Shaposhnikov A.M. et al. Phenylalanine hydroxylase activity in the livers of patients with phenylketonuria // Voprosy Meditsinskoi Khimii. - 1974. - V. 20. -N 6. - P. 656-660.

Shaposhnikov A.M. et al., "Phenylalanine hydroxylase activity in the livers of patients with phenylketonuria." Voprosy Meditsinskoi Khimii 20.6 (1974): 656-660.

Shaposhnikov, A. M., Skachkov, M. M. (1974). Phenylalanine hydroxylase activity in the livers of patients with phenylketonuria. Voprosy Meditsinskoi Khimii, 20(6), 656-660.