O. ORLOV, E. RYASNYKH, and O. SAVCHENKO, “ASSORTMENT PRICING IN THE FIELD OF MARKETING INNOVATION”, Herald of Khmelnytskyi National University. Economic sciences, vol. 306, no. 3, pp. 234–239, May 2022, doi: 10.31891/2307-5740-2022-306-3-34.