00613naa#a2200169#i#450# EN\\bibl\106182 20260601152358.1 2712-7761 20251110b2025####ek#y0engy0150####ca RU From teaching experience. XVIII. Table of 27 symmetry species Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2025 7 с. Journal article local Вывод 32-х классов симметрии. 548.127 Voytehovskiy Yuri Leonidovich ras.editorum.ru