Kropyvnytska, V., Humeniuk, T., Sabat, N., & Sementsov, G. (2018). Analysis of amplitude-phase functions of the drill string as a component of automation systemAnalysis of amplitude-phase functions of the drill string as a component of automation system. Eastern-European Journal of Enterprise Technologies, 1(2 (91), 48–58. https://doi.org/10.15587/1729-4061.2018.120544