%0 Journal Article %A Giovanni Bellettini %A Matteo Novaga %A Maurizio Paolini %T Facet-breaking for three-dimensional crystals evolving by mean curvature %J Interfaces and free boundaries %D 1999 %P 39-55 %V 1 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4171/ifb/3/ %R 10.4171/ifb/3 %F 10_4171_ifb_3