TY - BOOK AU - Engquist,B & Kriegsmann,G.A (eds) ED - Kriegsmann, G.A TI - Computational wave propagation T2 - IMA volumes in mathematics & its applications 86 SN - 9780387948744 U1 - 13.08+14.03+11.07+13.04 PY - 1997/// CY - New York PB - Springer ER -