00567naa#a2200169#i#4500001001600000005001700016011001400033100004100047102000700088200015700095210006600252215001000318608002700328700001900355700000600374856001700380EN\\bibl\12308720260522104116.5##a3034-4689##a20260508b2026####ek#y0engy0150####ca##aRU1#aAPPLICATION OF ISOGEOMETRIC APPROXIMATION BY CUBIC SPLINES IN THE CALCULATION OF THREE-DIMENSIONAL STRUCTURES BY THE VARIATIONAL METHODeJournal article1#aKazancKazan National Research Technological Universityd2026##a4 с.##aJournal article2local#1aSahbievgO. M.#1g 4#avestniktu.ru