@article{GDZPPN001252232,
title = {Power series developments in lattice ordered semigroups.},
journal = {Semigroup forum},
volume = {14},
year = {1977},
pages = {51-60},
zbl = {0373.06009},
url = {http://dml.mathdoc.fr/item/GDZPPN001252232}
}
Behrens, E.A. Power series developments in lattice ordered semigroups.. Semigroup forum, Tome 14 (1977) pp. 51-60. http://gdmltest.u-ga.fr/item/GDZPPN001252232/