@article{CMJ_1998_48_2_a3,
     author = {Ton, Dao-Rong},
     title = {The ${\scr Ar}$-free products of archimedean $l$-groups},
     journal = {Czechoslovak Mathematical Journal},
     pages = {243--252},
     year = {1998},
     volume = {48},
     number = {2},
     mrnumber = {1624311},
     zbl = {0952.06025},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/CMJ_1998_48_2_a3/}
}