Shekutkovski, N., and M. Shoptrajanov. “Morse Decomposition and Intrinsic Shape in Topological Spaces”. Methods of Functional Analysis and Topology, vol. 28, no. 2, June 2022, pp. 157-68, https://doi.org/https://doi.org/10.31392/MFAT-npu26_2.2022.08.