Gorbiychuk, M., Pashkovskyi, B., Moyseenko, O. and Sabat, N. (2017) “Solution of the optimization problem on the control over operation of gas pumping units under fuzzy conditions”, Eastern-European Journal of Enterprise Technologies, 5(2 (89), pp. 65–71. doi: 10.15587/1729-4061.2017.111349.