Morozov А.В. and Barsukov В.К. 2019. ОBSERVERS OF ROTATION FREQUENCY OF AN ASYNCHRONOUS MOTOR ON THE PRINCIPLE OF DETECTING SLOT CURRENT HARMONICS. Intellekt. Sist. Proizv. 17, 1 (Apr. 2019), 12–18. DOI:https://doi.org/10.22213/2410-9304-2019-1-12-18.