@incollection{cristini08_birk,
 author="Cristini, Vittorio and Frieboes, Hermann B. and Li, Xiangrong and 
         Lowengrub, John S. and Macklin, Paul and Sanga, Sandeep and 
         Wise, Steven M. and Zheng, Xiaomeng",
 title="Nonlinear modeling and simulation of tumor growth",
 booktitle="Selected topics in cancer modeling: Genesis, evolution, immune competition, and therapy. Modelling and Simulation in Science, Engineering, and Technology",
 editor="Bellomo, N. and Chaplain, Mark A. J. and de Angelis, E.",
 chapter="6",
 pages="113-82",
 year="2008",
 publisher="Birkh{\"a}user",
 address="Boston, MA USA",
 note="(invited author: V. Cristini)",
}