TY JOUR TI Spatial and temporal variations of K Ca II line profile shapes in different structures of the solar chromosphere. I. Features of individual profiles KW chromosphere KW K Ca II profiles KW K2v grains JO Solnechno-Zemnaya Fizika AU Turova, I.P. AU Grigoryeva, S.A. AU Ozhogina, O.A. PY 2018 IS 4 PB INFRA-M Academic Publishing LLC.