Матвєєва, Т. В., П. Ф. Петік, and З. П. Федякіна. “Mathematical Justification of Blending of Vegetable Oils”. Eastern-European Journal of Enterprise Technologies, vol. 3, no. 6(63), June 2013, pp. 26-28, doi:10.15587/1729-4061.2013.14801.