@article{MAN_1962__145_160913,
     author = {A. OBERSCHELP},
     title = {Untersuchungen zur mehrsortigen {Quantorenlogik.}},
     journal = {Mathematische Annalen},
     pages = {297--333},
     publisher = {mathdoc},
     volume = {145},
     year = {1962},
     zbl = {0101.25001},
     url = {http://geodesic.mathdoc.fr/item/MAN_1962__145_160913/}
}