TY  - BOOK
AU  - Paul Günther, J. Coates and S. Helgason
TI  - Huygens' Principle and Hyperbolic Equations
SN  - 9780123073303
PY  - 1988///
PB  - Academic Press
UR  - https://www.sciencedirect.com/science/book/9780123073303
ER  -