%0 Journal Article %A N. S. Polyakova %T Differentiation of functions of quaternionic variable %J Čebyševskij sbornik %D 2019 %P 298-310 %V 20 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/CHEB_2019_20_2_a22/ %G ru %F CHEB_2019_20_2_a22