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Author: Yakovlev, N. N.

• Yakovlev, N. N.: Свойства подпространста $\Sigma$-произведений, определяемые с помощью покрытий. (Russian) [Properties of subspaces of $\Sigma$-products defined by means of coverings]. Commentationes Mathematicae Universitatis Carolinae, vol. 25 (1984), issue 1, pp. 29-53
• Nakhmanson, L. V.; Yakovlev, N. N.: O бикoмпaктax, лeжaщиx в $\sigma$-пpoизвeдeнияx. (Russian) [Bicompacta lying in $\sigma $-products]. Commentationes Mathematicae Universitatis Carolinae, vol. 22 (1981), issue 4, pp. 705-719
• Yakovlev, N. N.: On bicompacta in $\Sigma$-products and related spaces. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 21 (1980), issue 2, pp. 263-283
• Pytkeev, Evgenij G.; Yakovlev, N. N.: On bicompacta which are unions of spaces defined by means of coverings. (English). Commentationes Mathematicae Universitatis Carolinae, vol. 21 (1980), issue 2, pp. 247-261