@article{GDZPPN002282984,
title = {Untersuchungen \"uber Deformationen.},
journal = {Mathematische Annalen},
volume = {125},
year = {1952},
pages = {19-31},
zbl = {0047.16601},
url = {http://dml.mathdoc.fr/item/GDZPPN002282984}
}
Thimm, W. Untersuchungen über Deformationen.. Mathematische Annalen, Tome 125 (1952) pp. 19-31. http://gdmltest.u-ga.fr/item/GDZPPN002282984/