@article{10_1017_S0017089500006388,
     author = {Pettet, Martin R.},
     title = {Groups whose automorphisms are almost determined by their restriction to a subgroup},
     journal = {Glasgow mathematical journal},
     pages = {87--93},
     year = {1986},
     volume = {28},
     number = {1},
     doi = {10.1017/S0017089500006388},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089500006388/}
}