@article{GDZPPN00117570X,
title = {A Method of Characteristics Solving the Initial-Boundary Value Problem of a Hyperbolic Differential Equation of Second Order.},
journal = {Numerische Mathematik},
volume = {35},
year = {1980},
pages = {217-234},
zbl = {0411.65054},
url = {http://dml.mathdoc.fr/item/GDZPPN00117570X}
}
Hackbusch, W.; Dittrich, S. A Method of Characteristics Solving the Initial-Boundary Value Problem of a Hyperbolic Differential Equation of Second Order.. Numerische Mathematik, Tome 35 (1980) pp. 217-234. http://gdmltest.u-ga.fr/item/GDZPPN00117570X/