@article{GDZPPN002045338,
title = {Predicate calculus and naive set theory in pure combinatory logic.},
journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung},
volume = {21},
year = {1981},
pages = {169-178},
zbl = {0472.03011},
url = {http://dml.mathdoc.fr/item/GDZPPN002045338}
}
Bunder, M.W. Predicate calculus and naive set theory in pure combinatory logic.. Archiv für mathematische Logik und Grundlagenforschung, Tome 21 (1981) pp. 169-178. http://gdmltest.u-ga.fr/item/GDZPPN002045338/