@article{GDZPPN002084716, title = {Metric properties of positively ordered monoids.}, journal = {Forum mathematicum}, volume = {5}, year = {1993}, pages = {183-202}, zbl = {0769.06008}, url = {http://dml.mathdoc.fr/item/GDZPPN002084716} }
Wehrung, Friedrich. Metric properties of positively ordered monoids.. Forum mathematicum, Tome 5 (1993) pp. 183-202. http://gdmltest.u-ga.fr/item/GDZPPN002084716/