Nesvidomin, A., Pylypaka, S., Volina, T., Rybenko, I. and Rebrii, A. (2024) “Analytical connection between the Frenet trihedron of a direct curve and the Darboux trihedron of the same curve on the surface”, Technology audit and production reserves, 4(2(78), pp. 54–59. doi: 10.15587/2706-5448.2024.310524.