@article{01345011,
title = {Lappo-Danilevski systems under Lyapunov transformations.},
journal = {Memoirs on Differential Equations and Mathematical Physics},
volume = {15},
year = {1998},
pages = {150-152},
zbl = {0931.34005},
language = {en},
url = {http://dml.mathdoc.fr/item/01345011}
}
Mazanik, S.A. Lappo-Danilevski systems under Lyapunov transformations.. Memoirs on Differential Equations and Mathematical Physics, Tome 15 (1998) pp. 150-152. http://gdmltest.u-ga.fr/item/01345011/