TY  - JOUR
AU  - C.McA. Gordon
AU  - D.W. Sumners
TI  - Knotted Ball Pairs whose Product with an Interval is Unknotted.
JO  - Mathematische Annalen
PY  - 1975
SP  - 47
EP  - 52
VL  - 217
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MAN_1975__217_162752/
ID  - MAN_1975__217_162752
ER  -