@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/} }