00742naa#a2200181#i#450# EN\\bibl\71292 20260310100755.2 2712-9640 20240326b2024####ek#y0engy0150####ca RU Observational characteristics of oscillations and waves in and around sunspots. Difficulties in observing and interpreting Journal article Irkutsk Institute of Solar-Terrestrial Physics SB RAS 2024 7 с. Journal article local Колебания плазмы. Резонансные колебания в плазме. Ударные волны. 533.951 Kobanov Nikolay Illarionovich Chelpanov Andrei Alekseevich ras.editorum.ru