Kravchenko, A. and Feshchenko, B. 2020. Automorphisms of Kronrod-Reeb graphs of Morse functions on 2-torus. Methods of Functional Analysis and Topology. 26, 1 (Mar. 2020), 88–96. DOI:https://doi.org/https://doi.org/10.31392/MFAT-npu26_1.2020.07.