Orazbayev, B., Moldasheva, Z., Orazbayeva, K., Makhatova, V., Kurmangaziyeva, L. and Gabdulova, A. (2021) “Development of mathematical models and optimization of operation modes of the oil heating station of main oil pipelines under conditions of fuzzy initial information”, Eastern-European Journal of Enterprise Technologies, 6(2 (114), pp. 147–162. doi: 10.15587/1729-4061.2021.244949.