@article{GDZPPN002084651,
title = {Closedness of morphisms of differential algebraic sets. Applications to system theory.},
journal = {Forum mathematicum},
volume = {5},
year = {1993},
pages = {33-48},
zbl = {0766.93011},
url = {http://dml.mathdoc.fr/item/GDZPPN002084651}
}
Diop, Sette. Closedness of morphisms of differential algebraic sets. Applications to system theory.. Forum mathematicum, Tome 5 (1993) pp. 33-48. http://gdmltest.u-ga.fr/item/GDZPPN002084651/