@article{1200788199,
author = {Kawamura, Tomomi},
title = {The unknotting numbers of $10\sb 139$ and $10\sb 152$ are 4},
journal = {Osaka J. Math.},
volume = {35},
number = {1},
year = {1998},
pages = { 539-546},
language = {en},
url = {http://dml.mathdoc.fr/item/1200788199}
}
Kawamura, Tomomi. The unknotting numbers of $10\sb 139$ and $10\sb 152$ are 4. Osaka J. Math., Tome 35 (1998) no. 1, pp. 539-546. http://gdmltest.u-ga.fr/item/1200788199/