Evgenjevich, L. I. “Theory of Heat Exchange in Pipes With Turbulators With d/D = 0.95 ÷ 0.90 And t/D = 0.25 ÷ 1.00, and Also in Rough Pipes, by Air With Great Reynold’s Numbers Re = 106”. Journal of Architectural Environment & Structural Engineering Research, vol. 2, no. 4, Apr. 2020, pp. 1-10, doi:10.30564/jaeser.v2i4.1168.