@Article{JPDE-2-59, author = {B.KupĂȘn }, title = {Reflection of Singularities at Boundary for Piecewise Smooth Solutions to Semilinear Hyperbolic Systems}, journal = {Journal of Partial Differential Equations}, year = {1989}, volume = {2}, number = {1}, pages = {59--70}, abstract = {}, issn = {2079-732X}, doi = {https://doi.org/}, url = {http://global-sci.org/intro/article_detail/jpde/5821.html} }