00762naa#a2200193#i#450# EN\\bibl\71293 20260301135640.7 2500-0535 20240326b2024####ek#y0engy0150####ca ENG 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 6 с. Journal article local Колебания плазмы. Резонансные колебания в плазме. Ударные волны. 533.951 ENG Kobanov Nikolay Illarionovich Chelpanov Andrei Alekseevich naukaru.ru