TY  - BOOK
TI  - Sturm-Liouville theory
SN  - 9781470413484 (online)
PY  - 2005///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/surv/121 | http://dx.doi.org/10.1090/surv/121
ER  -