%0 Conference Article %T Magnetic and photometric variability of the super-slowly rotating Ap star GY And (HD 9996) %A Bychkov, V.. %A Bychkova, L.. %A Madey, J.. %A Komissarova, G.. %A Metlova, N.. %K stars: magnetic field, rotation %J Modern astronomy: from the Early Universe to exoplanets and black holes %D 2024 %P 3 %I Special Astrophysical Observatory of the Russian Academy of Sciences