Abror Bahodirovich Vohidov, Obidjon Shukurullaevich Suvonov, and Hazrat Rayimkulovich Saparov. “PROBLEMS OF BUILDING MODELS WITH COMPUTER GRAPHICS OF SPECIAL CURVED LINES LYING ON A CURVED SURFACE”. International Engineering Journal For Research & Development, vol. 6, no. 3, May 2021, p. 4, doi:10.17605/OSF.IO/MWN3H.