@article{10_4171_ggd_372,
     author = {Bogdan Nica and J\'an \v{S}pakula},
     title = {Strong hyperbolicity},
     journal = {Groups, geometry, and dynamics},
     pages = {951--964},
     year = {2016},
     volume = {10},
     number = {3},
     doi = {10.4171/ggd/372},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ggd/372/}
}