@article{1093635416,
author = {Surendonk, Timothy J.},
title = {A lemma in the logic of action.},
journal = {Notre Dame J. Formal Logic},
volume = {31},
number = {2},
year = {1990},
pages = { 222-224},
language = {en},
url = {http://dml.mathdoc.fr/item/1093635416}
}
Surendonk, Timothy J. A lemma in the logic of action.. Notre Dame J. Formal Logic, Tome 31 (1990) no. 2, pp. 222-224. http://gdmltest.u-ga.fr/item/1093635416/