TY  - BOOK
AU  - Erbe,L.H.,et al
ED  - Kong, Q
ED  - Zhang, B.G
TI  - Oscillation theory for functional differential equations
T2  - Monographs & textbooks in pure & applied mathematics 190
SN  - 0-8247-9598-9
U1  - 510 
PY  - 1995///
CY  - New York
PB  - Marcel Dekker
ER  -