%0 Journal Article %A A. Yanushauskas %T Some questions on the distribution of the critical points of harmonic polynomials in three variables %J Differencialʹnye uravneniâ %D 1975 %P 170-175 %V 11 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1975_11_1_a18/ %G ru %F DE_1975_11_1_a18