Ripatti P.O., Popova R.A., Kagan T.B., Bekhtereva Z.A. (1969) Spectrophotometric determination of bile acids. Voprosy Meditsinskoi Khimii, 15(6), 630-633.

Ripatti P.O. et al. Spectrophotometric determination of bile acids // Voprosy Meditsinskoi Khimii. - 1969. - V. 15. -N 6. - P. 630-633.

Ripatti P.O. et al., "Spectrophotometric determination of bile acids." Voprosy Meditsinskoi Khimii 15.6 (1969): 630-633.

Ripatti, P. O., Popova, R. A., Kagan, T. B., Bekhtereva, Z. A. (1969). Spectrophotometric determination of bile acids. Voprosy Meditsinskoi Khimii, 15(6), 630-633.