@article{GDZPPN001261827, title = {Note on compatible well orders on a free monoid.}, journal = {Semigroup forum}, volume = {44}, year = {1992}, pages = {23-25}, zbl = {0791.20065}, url = {http://dml.mathdoc.fr/item/GDZPPN001261827} }
Kobayashi, Y. Note on compatible well orders on a free monoid.. Semigroup forum, Tome 44 (1992) pp. 23-25. http://gdmltest.u-ga.fr/item/GDZPPN001261827/