TY - JOUR AU - Giovanni Bellettini AU - Matteo Novaga AU - Maurizio Paolini TI - Facet-breaking for three-dimensional crystals evolving by mean curvature JO - Interfaces and free boundaries PY - 1999 SP - 39 EP - 55 VL - 1 IS - 1 UR - http://geodesic.mathdoc.fr/articles/10.4171/ifb/3/ DO - 10.4171/ifb/3 ID - 10_4171_ifb_3 ER -