Improvement of the Bulk of Core-Spun Cotton-Polyester Yarn in Conditions of Exposure to Electromagnetic Waves of Ultra-High Frequency UDC 677.022… https://vestnik.vstu.by/eng/issues/issue_35/technology_and_equipment_for_light_industry_and_mechanical_e/improvement-of-the-bulk-of-core-spun-cotton-polyester-yarn/