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@article{DAN_1972_203_5_a6, author = {V. I. Malykhin}, title = {On tightness and {Suslin} number in $\exp X$ and in a product of spaces}, journal = {Doklady Akademii Nauk}, pages = {1001--1003}, publisher = {mathdoc}, volume = {203}, number = {5}, year = {1972}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DAN_1972_203_5_a6/} }
V. I. Malykhin. On tightness and Suslin number in $\exp X$ and in a product of spaces. Doklady Akademii Nauk, Tome 203 (1972) no. 5, pp. 1001-1003. http://geodesic.mathdoc.fr/item/DAN_1972_203_5_a6/