@article{MAN_1936__112_159835,
     author = {W. ACKERMANN},
     title = {Beitr\"age zum {Entscheidungsproblem} der mathematischen {Logik}},
     journal = {Mathematische Annalen},
     pages = {419--432},
     publisher = {mathdoc},
     volume = {112},
     year = {1936},
     zbl = {62.0041.03},
     url = {http://geodesic.mathdoc.fr/item/MAN_1936__112_159835/}
}