@article{10_4171_ifb_137,
     author = {Lorenzo Giacomelli and G\"unther Gr\"un},
     title = {Lower bounds on waiting times for degenerate parabolic equations and systems},
     journal = {Interfaces and free boundaries},
     pages = {111--129},
     year = {2006},
     volume = {8},
     number = {1},
     doi = {10.4171/ifb/137},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ifb/137/}
}