@article{10_21136_CMJ_1951_100024,
     author = {Apfelbeck, Alois},
     title = {A contribution to {Khintchine's} principle of transfer},
     journal = {Czechoslovak Mathematical Journal},
     pages = {119--147},
     publisher = {mathdoc},
     volume = {01},
     number = {3},
     year = {1951},
     doi = {10.21136/CMJ.1951.100024},
     mrnumber = {0050636},
     zbl = {0048.27802},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1951.100024/}
}