@article{1029004602, author = {Smillie, John and Vogtmann, Karen}, title = {Length functions and outer space.}, journal = {Michigan Math. J.}, volume = {39}, number = {1}, year = {1992}, pages = { 485-493}, language = {en}, url = {http://dml.mathdoc.fr/item/1029004602} }
Smillie, John; Vogtmann, Karen. Length functions and outer space.. Michigan Math. J., Tome 39 (1992) no. 1, pp. 485-493. http://gdmltest.u-ga.fr/item/1029004602/