@article{10_4171_ggd_308,
     author = {Bruno Duchesne},
     title = {Superrigidity in infinite dimension and finite rank via harmonic maps},
     journal = {Groups, geometry, and dynamics},
     pages = {133--148},
     year = {2015},
     volume = {9},
     number = {1},
     doi = {10.4171/ggd/308},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/308/}
}