Khukhro has two books on automorphisems. They might be helpful.

Khukhro, E. I. p-automorphisms of finite p-groups. London Mathematical Society Lecture Note Series, 246. Cambridge University Press, Cambridge, 1998. xviii+204 pp. ISBN: 0-521-59717-X

Khukhro, Evgenii I. Nilpotent groups and their automorphisms. De Gruyter Expositions in Mathematics, 8. Walter de Gruyter & Co., Berlin, 1993. xiv+252 pp. ISBN: 3-11-013672-4

Khukhro has two books on automorphisms. They might be helpful.

Khukhro, E. I. p-automorphisms of finite p-groups. London Mathematical Society Lecture Note Series, 246. Cambridge University Press, Cambridge, 1998. xviii+204 pp. ISBN: 0-521-59717-X

Khukhro, Evgenii I. Nilpotent groups and their automorphisms. De Gruyter Expositions in Mathematics, 8. Walter de Gruyter & Co., Berlin, 1993. xiv+252 pp. ISBN: 3-11-013672-4