TY  - DATA
AU  - Murasugi, Kunio
TI  - On closed 3-braids
T2  - Memoirs of the American Mathematical Society, 
SN  - 9780821899526 (online)
PY  - 1974///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0151
ER  -