@article{1077490345,
author = {Titt, E. W.},
title = {$(n-1)$ -dimensional characteristic strips of a first order equation
and Cauchy's problem},
journal = {Duke Math. J.},
volume = {3},
number = {1},
year = {1937},
pages = { 740-746},
language = {en},
url = {http://dml.mathdoc.fr/item/1077490345}
}
Titt, E. W. $(n-1)$ -dimensional characteristic strips of a first order equation
and Cauchy’s problem. Duke Math. J., Tome 3 (1937) no. 1, pp. 740-746. http://gdmltest.u-ga.fr/item/1077490345/