@article{JRAM_1929__161_149697,
     author = {Walter Dubislav},
     title = {Elementarer {Nachweis} der {Widerspruchslosigkeit} des {Logik-Kalk\"uls.}},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {107--112},
     publisher = {mathdoc},
     volume = {161},
     year = {1929},
     zbl = {55.0033.03},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1929__161_149697/}
}