Colijn, Caroline and Fowler, A. C. and Mackey, Michael C. (2006) High frequency spikes in long period blood cell oscillations. J. Math. Biol., 53 . pp. 499-519.
Drobnjak, Ivana and Fowler, A. C. and Mackey, Michael C. (2006) Oscillations in a maturation model of blood cell production. SIAM J. Appl. Math., 66 (6). pp. 2027-2048.