@article{1102992977,
author = {Simons, S.},
title = {A theorem on lattice ordered groups, results of Ptak, Namioka and Banach, and a front-ended proof of Lebesgue's theorem.},
journal = {Pacific J. Math.},
volume = {23},
number = {3},
year = {1967},
pages = { 149-153},
language = {en},
url = {http://dml.mathdoc.fr/item/1102992977}
}
Simons, S. A theorem on lattice ordered groups, results of Ptak, Namioka and Banach, and a front-ended proof of Lebesgue's theorem.. Pacific J. Math., Tome 23 (1967) no. 3, pp. 149-153. http://gdmltest.u-ga.fr/item/1102992977/