@article{CMH_1993__68_2_140300,
     author = {Karen Vogtmann and Sava Krstic},
     title = {Equivariant outer space and automorphisms of free-by-finite groups.},
     journal = {Commentarii mathematici Helvetici},
     pages = {216--262},
     publisher = {mathdoc},
     volume = {68},
     number = {2},
     year = {1993},
     zbl = {0805.20030},
     url = {http://geodesic.mathdoc.fr/item/CMH_1993__68_2_140300/}
}