@article{1183738632,
author = {Ehrenfeucht, Andrzej},
title = {Discernible Elements in Models for Peano Arithmetic},
journal = {J. Symbolic Logic},
volume = {38},
number = {1},
year = {1973},
pages = { 291-292},
language = {en},
url = {http://dml.mathdoc.fr/item/1183738632}
}
Ehrenfeucht, Andrzej. Discernible Elements in Models for Peano Arithmetic. J. Symbolic Logic, Tome 38 (1973) no. 1, pp. 291-292. http://gdmltest.u-ga.fr/item/1183738632/