@article{105047, author = {Ladislav Beran}, title = {A note on Chehata's groups}, journal = {Commentationes Mathematicae Universitatis Carolinae}, volume = {007}, year = {1966}, pages = {117-121}, zbl = {0154.27002}, mrnumber = {0197544}, language = {en}, url = {http://dml.mathdoc.fr/item/105047} }
Beran, Ladislav. A note on Chehata's groups. Commentationes Mathematicae Universitatis Carolinae, Tome 007 (1966) pp. 117-121. http://gdmltest.u-ga.fr/item/105047/
An algebraically simple ordered group, Proc. Lond. Math. Soc., 2 (1952), 183-197. (1952) | MR 0047031 | Zbl 0046.02501