@article{10_4153_CJM_1980_067_3,
     author = {Benabdallah, Khalid and Robert, Serge},
     title = {Intersections {Finies} de {Sous-Groupes} {Nets}},
     journal = {Canadian journal of mathematics},
     pages = {885--892},
     year = {1980},
     volume = {32},
     number = {4},
     doi = {10.4153/CJM-1980-067-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1980-067-3/}
}