%0 Journal Article %A M. I. Belishev %A A. F. Vakulenko %T On algebras of harmonic quaternion fields in ${\mathbb R}^3$ %J Algebra i analiz %D 2019 %P 1-17 %V 31 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2019_31_1_a0/ %G ru %F AA_2019_31_1_a0