@article{10_21136_CMJ_1970_100973,
     author = {Nov\'ak, Josef},
     title = {On convergence groups},
     journal = {Czechoslovak Mathematical Journal},
     pages = {357--374},
     publisher = {mathdoc},
     volume = {20},
     number = {3},
     year = {1970},
     doi = {10.21136/CMJ.1970.100973},
     mrnumber = {0263973},
     zbl = {0217.08504},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1970.100973/}
}