TY JOUR TI Relation between the area of polar coronal holes and the solar wind speed at a minimum between solar cycles 22 and 23 KW coronal holes KW solar wind KW solar cycle JO Solar-Terrestrial Physics AU Борисенко, А.В. AU Богачев, С.А. PY 2023 IS 9 PB Институт солнечно-земной физики СО РАН