TY  - BOOK
AU  - Eastham M S P
TI  - Asymptotic solution of linear differential systems
T2  - London, mathematical society monographs new series; 4
U1  - B33,1, M9 
PY  - 1989///
CY  - Oxford
PB  - Clarendon Press        
KW  -  Differential equations
KW  - Mathematics
ER  -