18635 Britta Basse/.../David Wall: A mathematical model for analysis of the cell cycle in cell lines derived from human tumors. J. Math. Biol. 47 (2003), 295-312. 20273 Fadia Bekkal Brikci/Jean Clairambault/Benjamin Ribba/Benoit Perthame: An age-and-cyclin-structured cell population model for healthy and tumoral tissues. J. Math. Biol. 57 (2008), 91-110.