@article{1077377302,
author = {Schaufele, C. B.},
title = {The commutator group of a doubled knot},
journal = {Duke Math. J.},
volume = {34},
number = {1},
year = {1967},
pages = { 677-681},
language = {en},
url = {http://dml.mathdoc.fr/item/1077377302}
}
Schaufele, C. B. The commutator group of a doubled knot. Duke Math. J., Tome 34 (1967) no. 1, pp. 677-681. http://gdmltest.u-ga.fr/item/1077377302/