Gersten, S.M.. "Intersections of Finitely Generated Subgroups of Free Groups and Resolutions de Graphs.." Inventiones mathematicae 71 (1983): 567-592. <http://eudml.org/doc/143005>.
@article{Gersten1983, author = {Gersten, S.M.}, journal = {Inventiones mathematicae}, keywords = {bounds on rank; Howson theorem; finitely generated subgroups of free group; immersions; coverings; groups acting on trees}, pages = {567-592}, title = {Intersections of Finitely Generated Subgroups of Free Groups and Resolutions de Graphs.}, url = {http://eudml.org/doc/143005}, volume = {71}, year = {1983}, }
TY - JOUR AU - Gersten, S.M. TI - Intersections of Finitely Generated Subgroups of Free Groups and Resolutions de Graphs. JO - Inventiones mathematicae PY - 1983 VL - 71 SP - 567 EP - 592 KW - bounds on rank; Howson theorem; finitely generated subgroups of free group; immersions; coverings; groups acting on trees UR - http://eudml.org/doc/143005 ER -