%0 Journal Article %A Lorenzo Giacomelli %A Günther Grün %T Lower bounds on waiting times for degenerate parabolic equations and systems %J Interfaces and free boundaries %D 2006 %P 111-129 %V 8 %N 1 %U http://geodesic.mathdoc.fr/articles/10.4171/ifb/137/ %R 10.4171/ifb/137 %F 10_4171_ifb_137