Yeshkeyev, A.R., Kassymetova, M.T. and Ulbrikht, O.I. 2018. On the Jonsson pairs of Abelian groups in the enriched language. Journal of Mathematics, Mechanics and Computer Science. 95, 3 (Aug. 2018), 32–49. DOI:https://doi.org/10.26577/jmmcs-2017-3-466.