@article{AMLG_1985__25_138042,
     author = {Klaus Ambos-Spies},
     title = {Cupping and noncapping in the {R.E.} weak truth table and turing degrees.},
     journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung},
     pages = {109--126},
     publisher = {mathdoc},
     volume = {25},
     year = {1985},
     zbl = {0619.03032},
     url = {http://geodesic.mathdoc.fr/item/AMLG_1985__25_138042/}
}