**Peer-Reviewed Journals**

18. E. Camacho, C.Kribs-Zaleta, S.Wirkus, Metering Effects in Population Systems," *Mathematical Biosciences and Engineering*, forthcoming.

17. E. Camacho, S.Wirkus, “Tracing the Progression of Retinitis Pigmentosa via Photoreceptor Interactions," *Journal of Theoretical Biology*, 317: 105-118, 2013.

16. E. Camacho, S. Wirkus, P. Marshall, “Mathematical modeling of fungal infection in immune-compromised individuals: Implications for drug treatment," *Journal of Theoretical Biology*, 281(1): 9-17, 2011.

15. F. Berezovskaya, S. Wirkus, B. Song, C. Castillo-Chavez, “Dynamics of population communities with prey migrations and Allee effects: a bifurcation approach," *Mathematical Medicine and Biology*, 28(2): 129-152, 2011.

14. E. Camacho, M. Colon-Velez, D. Hernandez, U. Rodriguez-Bernier, J. van Laarhoven, S. Wirkus, “A Mathematical Model for Photoreceptor Interactions," *Journal of Theoretical Biology*, 267(4): 638-646, 2010.

13. N. Crisosto, C. Kribs-Zaleta, S. Wirkus, C. Castillo-Chavez, “Community Resilience in Collaborative Learning," *Discrete and Continuous Dynamical Systems - Series B*, 14(1): 17-40, 2010.

12. D. Daugherty, T. Roque-Urrea, J. Urrea-Roque, J. Troyer, S. Wirkus, M. Porter, “Mathematical Models of Bipolar Disorder," *Communications in Nonlinear Science and Numerical Simulation*, 14(7): 2897-2908, 2009.

11. S. Wirkus, M. Porter, “Comment on `Bifurcation analysis of parametrically excited bipolar disorder model'," *Communications in Nonlinear Science and Numerical Simulation*, 14(6): 2844, 2009.

10. F. Berezovskaya, E. Camacho, S. Wirkus, G. Karev, “Traveling Wave Solutions of Fitzhugh model with Cross-diffusion," *Mathematical Biosciences and Engineering*, 5(2): 239-260, 2008.

9. J. Abiva, E. Camacho, E. Joseph, A. Mikaelian, C. Rogers, J. Shelton, S. Wirkus, “Alcohol's E_ect on Neuron Firing," *The Mathematical Scientist*, 32(1): 32-40, 2007.

8. S. Wirkus, R. Swift, J. Switkes, “On Highway Relativity," *The Mathematical Scientist*, 31(2): 132-133, 2006.

7. S. Wirkus, “Approximating the Time Delay in Coupled van der Pol Oscillators with Delay Coupling," *Stochastic Processes and Functional Analysis: a volume of recent advances in honor of MM Rao, Marcel Dekker*, pp. 483-491, 2004.

6. J. Switkes, S. Wirkus, I. Mihaila, R. Swift, “On the Means of Deterministic and Stochastic Populations," *The Mathematical Scientist*, 28(2): 91-98, 2003.

5. R. Swift, J. Switkes, S. Wirkus, “Perceived Highway Speed," *The Mathematical Scientist*, 28(1): 28-36, 2003.

4. S. Wirkus, R. Rand, “The Dynamics of Two Coupled van der Pol Oscillators with Delay Coupling," *Nonlinear Dynamics*, 30(3): 205-221, 2002.

3. S. Wirkus, R. Rand, “Bifurcations in the Dynamics of Two Coupled van der Pol Oscillators with Delay Coupling," *Proceedings of the DETC'99, ASME Design Engineering Technical Conferences*, Sept 13-16, 1999, paper no. DETC99/VIB-8318.

2. S. Wirkus, R. Rand, A. Ruina, “How To Pump a Swing," *College Mathematics Journal*, 29(4): 266-275, 1998.

1. S. Wirkus, R. Rand, “Dynamics of Two Coupled van der Pol Oscillators with Delay Coupling," *Proceedings of the DETC'97, ASME Design Engineering Technical Conferences*, Sept 14-17, 1997, paper no. DETC97/VIB-4019.

**Books**

R. Swift, S. Wirkus, *A Course in Ordinary Differential Equations*, 2nd Edition, Chapman & Hall/CRC Press, Boca Raton, FL, 2013 (under contract).

R. Swift, S. Wirkus, *A Course in Ordinary Differential Equations*, Chapman & Hall/CRC Press, Boca Raton, FL, 667 pages, 2006.

R. Swift, S. Wirkus, *Solutions Manual for A Course in Ordinary Differential Equations*, 245 pages, Chapman & Hall/CRC Press, 2007.