@article{1181070158,
author = {Rosales, J.C. and Garc\'\i a-S\'anchez, P.A.},
title = {Minimal Presentations of Full Subsemigroups of ${\bf N}^2$},
journal = {Rocky Mountain J. Math.},
volume = {31},
number = {4},
year = {2001},
pages = { 1417-1422},
language = {en},
url = {http://dml.mathdoc.fr/item/1181070158}
}
Rosales, J.C.; García-Sánchez, P.A. Minimal Presentations of Full Subsemigroups of ${\bf N}^2$. Rocky Mountain J. Math., Tome 31 (2001) no. 4, pp. 1417-1422. http://gdmltest.u-ga.fr/item/1181070158/