00660naa#a2200181#i#450# EN\\bibl\55728 20240723033435.2 1994-5655 20221220b2022####ek#y0engy0150####ca RU The problem of the stability of circular rings connected to each other Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2022 5 с. Journal article local Ядерная, атомная, молекулярная физика. 539.1 Andryukova V. Yu. Tarasov V. N. komisc.editorum.ru