@article{CMUC_1991__32_2_a6,
     author = {Kokilashvili, Vachtang and R\'akosn{\'\i}k, Ji\v{r}{\'\i}},
     title = {A two weight weak inequality for potential type operators},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {251--263},
     publisher = {mathdoc},
     volume = {32},
     number = {2},
     year = {1991},
     mrnumber = {1137786},
     zbl = {0746.42011},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMUC_1991__32_2_a6/}
}