@article{SM_2018_209_11_a1,
     author = {S. V. Bochkarev},
     title = {An abstract {Kolmogorov} theorem, and an~application to metric spaces and topological groups},
     journal = {Sbornik. Mathematics},
     pages = {1575--1602},
     publisher = {mathdoc},
     volume = {209},
     number = {11},
     year = {2018},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2018_209_11_a1/}
}