%0 Journal Article %A M. G. Bashmakova %A E. S. Zolotukhina %T On estimate of irrationality measure of the numbers $\sqrt{4k+3}\ln{\frac{\sqrt{4k+3}+1}{\sqrt{4k+3}-1}}$ and $\frac{1}{\sqrt{k}}\mathrm{arctg}\,{\frac{1}{\sqrt{k}}}$ %J Čebyševskij sbornik %D 2018 %P 15-29 %V 19 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2018_19_2_a1/ %G ru %F CHEB_2018_19_2_a1