TY  - BOOK
AU  - Asano N
AU  -  Kato Y
TI  - Algebraic and spectral methods for nonlinear wave equations
T2  - Pitman monographs and surveys in pure and applied mathematics; 49
U1  - B334, N0 
PY  - 1990///
CY  - England
PB  - Longman Scientific & Technical      
KW  -  Nonlinear waves
KW  - Wave equations
ER  -