TY  - BOOK
AU  - Reissig,R.,et al
TI  - Nonlinear differential equations of higher order
T2  - Monographs & textbooks on pure & applied mathematics
SN  - 9001752705
U1  - 515.35 
PY  - 1958///
CY  - Leyden
PB  - Noordhoff International Publishing
ER  -