TY  - JOUR
AU  - D.W. Sumners
AU  - L.R. Hitt
TI  - Many different disk knots with the same exterior.
JO  - Commentarii mathematici Helvetici
PY  - 1981
SP  - 142
EP  - 147
VL  - 56
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/CMH_1981__56_139863/
ID  - CMH_1981__56_139863
ER  -