TY - JOUR AU - Agol, Ian TI - Volume change under drilling JO - Geometry & topology PY - 2002 SP - 905 EP - 916 VL - 6 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.2140/gt.2002.6.905/ DO - 10.2140/gt.2002.6.905 ID - GT_2002_6_2_a10 ER -