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@article{DAN_1975_223_4_a6, author = {B. \`E. Shapirovskii}, title = {On $\pi$-character and $\pi$-weight in compact {Hausdorff} spaces}, journal = {Doklady Akademii Nauk}, pages = {799--802}, publisher = {mathdoc}, volume = {223}, number = {4}, year = {1975}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1975_223_4_a6/} }
B. È. Shapirovskii. On $\pi$-character and $\pi$-weight in compact Hausdorff spaces. Doklady Akademii Nauk, Tome 223 (1975) no. 4, pp. 799-802. http://geodesic.mathdoc.fr/item/DAN_1975_223_4_a6/