Levin F.B. (1969) A simple method for tyrosine aminotransferase activity determination by spectrophotometry. Voprosy Meditsinskoi Khimii, 15(3), 315-317.

et al. A simple method for tyrosine aminotransferase activity determination by spectrophotometry // Voprosy Meditsinskoi Khimii. - 1969. - V. 15. -N 3. - P. 315-317.

et al., "A simple method for tyrosine aminotransferase activity determination by spectrophotometry." Voprosy Meditsinskoi Khimii 15.3 (1969): 315-317.

Levin, F. B. (1969). A simple method for tyrosine aminotransferase activity determination by spectrophotometry. Voprosy Meditsinskoi Khimii, 15(3), 315-317.