00643naa#a2200169#i#4500001001500000005001700015011001400032100004100046102000700087200008300094210010900177215001000286608002700296675009200323700003500415856002300450EN\\bibl\8396820240722122305.1##a2712-7761##a20240611b2024####ek#y0engy0150####ca##aRU1#aFrom teaching experience. XIV. On the variety of tetrahedronseJournal article1#aSyktyvkarcFSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences"d2024##a3 с.##aJournal article2local##aУчение о симметрии. Учение о простых формах. 548.12#1aVoytehovskiygYuri Leonidovich4#akomisc.editorum.ru