TY  - DATA
AU  - Cha, Jae Choon
TI  - The structure of the rational concordance group of knots 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470404895 (online)
PY  - 2007///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0885
ER  -