Ussipbek, B.A., Ablaikhanova, N.T., Murzakhmetova, M.K., Isachenko, V. and Ryskulova, J.B. 2018. Study of qualitative and quantitative indicators of the spermatogenesis for determination of the effectiveness of cryopreservation. International Journal of Biology and Chemistry. 11, 1 (Aug. 2018), 127–132. DOI:https://doi.org/10.26577/ijbch-2018-1-322.