@article{GDZPPN00203526X,
title = {A vector functional equation and linear differential equations.},
journal = {Aequationes mathematicae},
volume = {28},
year = {1985},
pages = {19-23},
zbl = {0593.39006},
url = {http://dml.mathdoc.fr/item/GDZPPN00203526X}
}
Neumann, Frantisek. A vector functional equation and linear differential equations.. Aequationes mathematicae, Tome 28 (1985) pp. 19-23. http://gdmltest.u-ga.fr/item/GDZPPN00203526X/