%0 Journal Article %A N. Kuznetsov %T Metaharmonic functions: mean flux theorem, its converse and related properties %J Algebra i analiz %D 2021 %P 82-97 %V 33 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/AA_2021_33_2_a4/ %G en %F AA_2021_33_2_a4