@misc{10_4153_CJM_2011_062_8,
     title = {Triangles of {Baumslag{\textendash}Solitar} {Groups}},
     journal = {Canadian journal of mathematics},
     pages = {241--253},
     year = {2012},
     volume = {64},
     number = {2},
     doi = {10.4153/CJM-2011-062-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2011-062-8/}
}