@Article{ BelNovPao98, author = { Bellettini, Giovanni and Novaga, Matteo and Paolini, Maurizio }, title = { An example of three dimensional fattening for linked space curves evolving by curvature }, journal = { Comm. Partial Differential Equations }, year = { 1998 }, volume = { 23 }, pages = { 1475-1492 }, URL = { http://cvgmt.sns.it/paper/2694/ }, note = { cvgmt preprint} }