Prishlyak, O., V, Kiosak, and O. Savchenko. 2025. “Distinguishing Graph of Function With Three Critical Points on a Closed 3-Manifold ”. Ukrains’kyi Matematychnyi Zhurnal 77 (1): 28-46. https://doi.org/10.3842/umzh.v77i1.8095.