@article{02017789,
title = {Volume change under drilling.},
journal = {Geometry \& Topology},
volume = {6},
year = {2002},
pages = {905-916},
doi = {10.2140/gt.2002.6.905},
zbl = {1031.57014},
language = {en},
url = {http://dml.mathdoc.fr/item/02017789}
}
Agol, Ian. Volume change under drilling.. Geometry & Topology, Tome 6 (2002) pp. 905-916. doi : 10.2140/gt.2002.6.905. http://gdmltest.u-ga.fr/item/02017789/