On the normal systems of differential equations
Breves Filho, J.A.
Portugaliae mathematica, Tome 33 (1974), p. 199-201 / Harvested from Portugaliae Mathematica
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Publié le : 1974-01-01
EUDML-ID : urn:eudml:doc:115239 
@article{2749,
     author = {Breves Filho, J.A.},
     title = {On the normal systems of differential equations},
     journal = {Portugaliae mathematica},
     volume = {33},
     year = {1974},
     pages = {199-201},
     zbl = {0305.34012},
     mrnumber = {0369782},
     language = {en},
     url = {http://dml.mathdoc.fr/item/2749}
}

Breves Filho, J.A. On the normal systems of differential equations. Portugaliae mathematica, Tome 33 (1974) pp. 199-201. http://gdmltest.u-ga.fr/item/2749/