@article{AMLG_1974__16_137886,
     author = {B. Buchberger},
     title = {On certain decompositions of {G\"odel} numberings.},
     journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung},
     pages = {85--96},
     publisher = {mathdoc},
     volume = {16},
     year = {1974},
     zbl = {0284.02022},
     url = {http://geodesic.mathdoc.fr/item/AMLG_1974__16_137886/}
}