@article{GDZPPN002488930,
title = {Generalized Solutions to Nonlinear First-Order Systems.},
journal = {Monatshefte f\"ur Mathematik},
volume = {118},
year = {1994},
pages = {7-20},
zbl = {0807.35020},
url = {http://dml.mathdoc.fr/item/GDZPPN002488930}
}
Biagioni, H.A. Generalized Solutions to Nonlinear First-Order Systems.. Monatshefte für Mathematik, Tome 118 (1994) pp. 7-20. http://gdmltest.u-ga.fr/item/GDZPPN002488930/