Kropyvnytska, V., Humeniuk, T., Sabat, N. and 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) (Jan. 2018), 48–58. DOI:https://doi.org/10.15587/1729-4061.2018.120544.