@article{105255, author = {Pavel \v Cih\'ak}, title = {A combinatorial theorem on the existence of a separating element and its applications to sequences and $\sigma$-derivations of measures}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {010}, year = {1969}, pages = {593-611}, zbl = {0208.07005}, mrnumber = {0262448}, language = {en}, url = {http://dml.mathdoc.fr/item/105255} }
Čihák, Pavel. A combinatorial theorem on the existence of a separating element and its applications to sequences and $\sigma$-derivations of measures. Commentationes Mathematicae Universitatis Carolinae, Tome 010 (1969) pp. 593-611. http://gdmltest.u-ga.fr/item/105255/
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