@article{hal-00095651,
author = {Cegielski, Patrick},
title = {The Elementary Theory of the Natural Lattice is Finitely Axiomatizable},
journal = {HAL},
volume = {1989},
number = {0},
year = {1989},
language = {en},
url = {http://dml.mathdoc.fr/item/hal-00095651}
}
Cegielski, Patrick. The Elementary Theory of the Natural Lattice is Finitely Axiomatizable. HAL, Tome 1989 (1989) no. 0, . http://gdmltest.u-ga.fr/item/hal-00095651/