@article{JRAM_1957__198_150350,
     author = {Harald Bergstr\"om},
     title = {On the {Limit} {Theorems} for {Convolutions} of {Distribution} {Functions.} {I.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {121--142},
     publisher = {mathdoc},
     volume = {198},
     year = {1957},
     zbl = {0078.31405},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1957__198_150350/}
}