@article{GDZPPN002061554,
title = {Rational Lie Algebras and p-Isomorphisms of Nilpotent Groups and Homotopy Types.},
journal = {Commentarii mathematici Helvetici},
volume = {50},
year = {1975},
pages = {1-8},
zbl = {0303.20021},
url = {http://dml.mathdoc.fr/item/GDZPPN002061554}
}
Roitberg, Joseph. Rational Lie Algebras and p-Isomorphisms of Nilpotent Groups and Homotopy Types.. Commentarii mathematici Helvetici, Tome 50 (1975) pp. 1-8. http://gdmltest.u-ga.fr/item/GDZPPN002061554/