@article{ZNSL_2008_355_a9, author = {P. A. Mozolyako}, title = {On the definition of $B$-points}, journal = {Zapiski Nauchnykh Seminarov POMI}, pages = {219--236}, publisher = {mathdoc}, volume = {355}, year = {2008}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/ZNSL_2008_355_a9/} }