@article{01146280,
title = {Coppel-Conti sets of linear systems.},
journal = {Memoirs on Differential Equations and Mathematical Physics},
volume = {12},
year = {1997},
pages = {90-98},
zbl = {0901.34011},
language = {en},
url = {http://dml.mathdoc.fr/item/01146280}
}
Izobov, N.A.; Prokhorova, R.A. Coppel-Conti sets of linear systems.. Memoirs on Differential Equations and Mathematical Physics, Tome 12 (1997) pp. 90-98. http://gdmltest.u-ga.fr/item/01146280/