@article{1077473739,
author = {Zimmerberg, Hyman J.},
title = {A self-adjoint differential system of even order},
journal = {Duke Math. J.},
volume = {13},
number = {1},
year = {1946},
pages = { 411-417},
language = {en},
url = {http://dml.mathdoc.fr/item/1077473739}
}
Zimmerberg, Hyman J. A self-adjoint differential system of even order. Duke Math. J., Tome 13 (1946) no. 1, pp. 411-417. http://gdmltest.u-ga.fr/item/1077473739/