@article{macklin05_jcp,
 author="Macklin, Paul and Lowengrub, John S.",
 title="{Evolving interfaces via gradients of geometry-dependent interior Poisson problems: application to tumor growth}",
 journal="J. Comput. Phys.",
 volume="203",
 number="1",
 year="2005",
 pages="191-220",
 DOI="10.1016/j.jcp.2004.08.010",
 URL="http://dx.doi.org/10.1016/j.jcp.2004.08.010",
}