@article{10_4171_ggd_5,
     author = {Florian Martin and Alain Valette},
     title = {On the first $L^p$-cohomology of discrete groups},
     journal = {Groups, geometry, and dynamics},
     pages = {81--100},
     year = {2007},
     volume = {1},
     number = {1},
     doi = {10.4171/ggd/5},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/5/}
}