@article{05875531,
title = {Systems of linear differential equations symmetric with respect to transformations nonlinear in a function.},
journal = {Sibirskij Matematicheskij Zhurnal},
volume = {50},
year = {2009},
pages = {680-686},
zbl = {1224.35060},
language = {en},
url = {http://dml.mathdoc.fr/item/05875531}
}
Chirkunov, Yu.A. Systems of linear differential equations symmetric with respect to transformations nonlinear in a function.. Sibirskij Matematicheskij Zhurnal, Tome 50 (2009) pp. 680-686. http://gdmltest.u-ga.fr/item/05875531/