00555naa#a2200169#i#450# EN\INFRA-M\bibl\91301 20241220094445.5 2308-4898 20240625b2024####ek#y0engy0150####ca RU Approximation of Freeform Surfaces with Polyhedra Composed of Congruent Triangles Journal article Moscow INFRA-M Academic Publishing LLC. 2024 12 с. Journal article local Стереометрия. 514.113 Rustamyan Vyacheslav Volodyaevich naukaru.ru