@article{10_4171_ifb_187,
     author = {Pierre Cardaliaguet and Olivier Ley},
     title = {On the energy of a flow arising in shape optimization},
     journal = {Interfaces and free boundaries},
     pages = {223--243},
     year = {2008},
     volume = {10},
     number = {2},
     doi = {10.4171/ifb/187},
     url = {http://geodesic.mathdoc.fr/articles/10.4171/ifb/187/}
}