@article{IM2_1997_61_5_a4,
     author = {V. Yu. Protasov},
     title = {The generalized joint spectral radius. {A~geometric} approach},
     journal = {Izvestiya. Mathematics },
     pages = {995--1030},
     publisher = {mathdoc},
     volume = {61},
     number = {5},
     year = {1997},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1997_61_5_a4/}
}