Optimization of the Activity of an Enterprise Regarding the Choice of an Effective Way of an Introduction of Innovations by a Building of Multicriterial Task. Ekon. čas. Volins. nac. unìv. ìm. Lesì Ukraïnki 2017, 1 (9), 65-71. https://doi.org/10.29038/2411-4014-2017-01-65-71.