00570naa#a2200169#i#450# EN\\bibl\43856 20240503041512.5 2307-1400 20210505b2021####ek#y0engy0150####ca RU Couscous-constant approximation in signal filtration task Journal article Saint-Petersburg Strategy of the Future 2021 9 с. Journal article local Различные отрасли промышленности и ремесла. 68 Butyrskiy E. Yu. Yur'evich futurepubl.ru