TY CONF TI "Magnetospheric gate" in polars KW stars: cataclysmic variables KW polars KW magnetic fields; accretion; individual: AM Her KW QQ Vul KW AR UMa JO Modern astronomy: from the Early Universe to exoplanets and black holes AU Ikhsanov, N.. AU Beskrovnaya, N.. AU Kim, V.. AU Korol'kova, O.. PY 2024 PB Special Astrophysical Observatory of the Russian Academy of Sciences