Projectivities in finite p-groups
Rendiconti del Seminario Matematico della Università di Padova, Tome 48 (1972), p. 1-13
@article{RSMUP_1972__48__1_0,
     author = {Wehrhahn, Karl H.},
     title = {Projectivities in finite $p$-groups},
     journal = {Rendiconti del Seminario Matematico della Universit\`a di Padova},
     publisher = {Seminario Matematico of the University of Padua},
     volume = {48},
     year = {1972},
     pages = {1-13},
     zbl = {0355.20030},
     mrnumber = {360815},
     language = {en},
     url = {http://www.numdam.org/item/RSMUP_1972__48__1_0}
}
Wehrhahn, Karl H. Projectivities in finite $p$-groups. Rendiconti del Seminario Matematico della Università di Padova, Tome 48 (1972) pp. 1-13. http://www.numdam.org/item/RSMUP_1972__48__1_0/

[1] Jacobson, N.: Lectures in Abstract Algebra, vol. 2, Van Nostrand, 1953. | MR 53905 | Zbl 0053.21204

[2] Wehrhahn, K.H.: Projectivities in Finite p-groups I, Math. Zeitschr. (to appear).