%0 Journal Article
%T Complexes of activity on the Sun in solar cycle 21
%A Yazev, S.A.
%A Ulianova, M.M.
%A Isaeva, E.S.
%K solar activity, activity complexes, flares, North-South asymmetry
%J Solnechno-Zemnaya Fizika
%D 2021
%N 7
%P 6
%I INFRA-M Academic Publishing LLC.