@article{GFA_1996__6_1_58234,
     author = {E. Leuzinger and C. Pittet},
     title = {Isoperimetric {Inequalities} for {Lattices} in {Semisimple} {Lie} {Groups} of {Rank} 2.},
     journal = {Geometric and functional analysis},
     pages = {489--511},
     publisher = {mathdoc},
     volume = {6},
     number = {1},
     year = {1996},
     zbl = {0856.22013},
     url = {http://geodesic.mathdoc.fr/item/GFA_1996__6_1_58234/}
}