@article{10_21136_CMJ_1969_100910,
     author = {Mi\v{s}{\'\i}k, Ladislav},
     title = {\"Uber $f$-durchschnittliche {Eigenschaften}},
     journal = {Czechoslovak Mathematical Journal},
     pages = {380--389},
     publisher = {mathdoc},
     volume = {19},
     number = {3},
     year = {1969},
     doi = {10.21136/CMJ.1969.100910},
     mrnumber = {0245736},
     zbl = {0185.12001},
     language = {ge},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1969.100910/}
}