Rights:
© 2005 American Physical Society (APS). This is the accepted version of the following article: Peltomäki, Matti & Vuorinen, Ville & Alava, Mikko J. & Rost, Martin. 2005. Host-parasite models on graphs. Physical Review E. Volume 72, Issue 4. 046134/1-9. ISSN 1539-3755 (printed). DOI: 10.1103/physreve.72.046134, which has been published in final form at http://journals.aps.org/pre/abstract/10.1103/PhysRevE.72.046134.