@article{1093890628,
author = {Leblanc, Hugues and Snyder, D. Paul},
title = {Duals of Smullyan trees.},
journal = {Notre Dame J. Formal Logic},
volume = {13},
number = {3},
year = {1972},
pages = { 387-393},
language = {en},
url = {http://dml.mathdoc.fr/item/1093890628}
}
Leblanc, Hugues; Snyder, D. Paul. Duals of Smullyan trees.. Notre Dame J. Formal Logic, Tome 13 (1972) no. 3, pp. 387-393. http://gdmltest.u-ga.fr/item/1093890628/