TY  - BOOK
TI  - Topology of closed one-forms
SN  - 9781470413354 (online)
PY  - 2004///
CY  - Providence, RI
PB  - American Mathematical Society
UR  - http://www.ams.org/surv/108 | http://dx.doi.org/10.1090/surv/108
ER  -