@article{MM2_1997__93_4_156316,
     author = {R.B. Howlett and P.J. Rowley and D.E. Taylor},
     title = {On {Outer} {Automorphism} {Groups} of {Coxeter} {Groups.}},
     journal = {Manuscripta mathematica},
     pages = {499--514},
     publisher = {mathdoc},
     volume = {93},
     number = {4},
     year = {1997},
     zbl = {0888.20023},
     url = {http://geodesic.mathdoc.fr/item/MM2_1997__93_4_156316/}
}