Theorems on stability of convexity of closed curves under single-sheeted mappings
English version (Springer): Ukrainian Mathematical Journal 23 (1971), no. 2, pp 241-244.
Citation Example: Cherney N. I. Theorems on stability of convexity of closed curves under single-sheeted mappings // Ukr. Mat. Zh. - 1971. - 23, № 2. - pp. .
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