Metric Projection onto Subsets of Compact Connected Two-Dimensional Riemannian Manifolds / *K. S. Shklyaev.* // Vestnik Moskovskogo Universiteta. Seriya 1. Matematika. Mekhanika. 2017. № 4. P. 15-20
[Moscow Univ. Math. Bulletin. Vol. 72, N 2, 2017. P. 149-153].

The paper is focused on combinatorial properties of the metric projection *E*
consisting of *k* closed connected sets *k* and the type of the manifold *E* of a normed plane consisting of a finite number
of connected components.

*Key words*:
two-dimensional manifold, metric projection, Euler inequality, exceptional points.