TY  - DATA
AU  - Millett, Kenneth C.
TI  - Piecewise linear concordances and isotopies
T2  - Memoirs of the American Mathematical Society, 
SN  - 9780821899540 (online)
PY  - 1974///
CY  - Providence
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0153
ER  -