[1]
I. E.Rovenskikh, T. P. Belikova, T. A.Syrovatskaya, and E. A. Shamrina, “Features of Formation of Regional Reproductive Proportions in Modern Conditions Annotation”, IJET, vol. 7, no. 4.25, pp. 198–200, Nov. 2018, doi: 10.14419/ijet.v7i4.25.26922.