Бєляєв, Ю. Б., В. В. Іващук, and М. В. Васьків. “A New Approach to the Problem Resolution Monitoring of Parameters Activity by Manufacturing PET – Bottles”. Eastern-European Journal of Enterprise Technologies, vol. 4, no. 4(52), Dec. 2011, pp. 11-13, doi:10.15587/1729-4061.2011.1382.