%0 Journal Article %T Digital B2B Platforms for Supplier Search: Functionality, Interaction Models and Comparative Analysis of Aggregators Under Geo-Economic Fragmentation %A Kozikova, D.A. %A Vinokurov, O.V. %A Mazin, A.S. %K supplier aggregators, digital procurement, platform governance, transaction costs, risk management, geo-economic fragmentation %J Journal of Applied Research %D 2026 %N 0 %P 0 %I ITBO University