Sergeev, S. M.Boos, G. E.Mangazeev, V. V.Stroganov, Y. U.G.2026-01-012026-01-010217-7323ORCID:/0000-0001-6017-9231/work/162949688https://hdl.handle.net/1885/733801082In this letter we apply the method of ψ-vectors to the three-dimensional statistical model. This method gives the correspondence between the Bazhanov-Baxter model and its vertex version. We also apply the ψ-vectors method to the self-dual planar model.8en199610.1142/s02177323960005390039031274