S. A. Akbarov, “Some corollaries from the theorem of comparison of angles whose curvature is bounded below in the “integral” sense”, Sibirsk. Mat. Zh., 32:3 (1991), 3–11; Siberian Math. J., 32:2 (1991), 353–360
1987
2.
S. A. Akbarov, V. A. Toponogov, “A theorem on the congruence of the angles of a triangle for a class of Riemannian manifolds”, Trudy Inst. Mat. Sib. Otd. AN SSSR, 9 (1987), 16–25
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