@article{AMLG_1981__21_137984,
     author = {M.W. Bunder},
     title = {Predicate calculus and naive set theory in pure combinatory logic.},
     journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung},
     pages = {169--178},
     publisher = {mathdoc},
     volume = {21},
     year = {1981},
     zbl = {0472.03011},
     url = {http://geodesic.mathdoc.fr/item/AMLG_1981__21_137984/}
}