TY  - BOOK
AU  - Reid,William T.(William Thomas),1907-1977-
TI  - Sturmian theory for ordinary differential equations
SN  - 0387905421
PY  - 1980///
CY  - New York
PB  - Springer-Verlag
KW  - Differential equations
N1  - Bibliography: p.509-548
ER  -