Geoffrey Canright Kenth Engø-Monsen A 'Pumping' Model for the Spreading of Computer Viruses. 133-144 2007 conf/aims/2007 AIMS https://doi.org/10.1007/978-3-540-72986-0_12 http://dl.ifip.org/db/conf/aims/aims2007/CanrightE07.pdf db/conf/aims/aims2007.html#CanrightE07