@article{10_4064_fm188_9_2016, author = {Arkady G. Leiderman and Vladimir G. Pestov and Artur H. Tomita}, title = {On topological groups admitting a base at the identity indexed by $\omega ^{\omega }$}, journal = {Fundamenta Mathematicae}, pages = {79--100}, publisher = {mathdoc}, volume = {238}, number = {1}, year = {2017}, doi = {10.4064/fm188-9-2016}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/fm188-9-2016/} }