@article{1093891498,
author = {Wilde, Alan C.},
title = {A substitution property.},
journal = {Notre Dame J. Formal Logic},
volume = {15},
number = {1},
year = {1974},
pages = { 639-640},
language = {en},
url = {http://dml.mathdoc.fr/item/1093891498}
}
Wilde, Alan C. A substitution property.. Notre Dame J. Formal Logic, Tome 15 (1974) no. 1, pp. 639-640. http://gdmltest.u-ga.fr/item/1093891498/