%0 Journal Article %1 wieder2012addendum %A Wieder, Thomas %D 2012 %E Ltd., Hikari %J International Mathematical Forum %K dynamics formation opinion population %N 54 %P 2681-2686 %T Addendum to 'A simple differential equation system for the description of competition among religions' %U http://m-hikari.com/imf/imf-2012/53-56-2012/wiederIMF53-56-2012.pdf %V 7 %X We propose a linear diff erential equation system for the description of competitions among populations (e.g. religions) for followers. The interaction among the populations is modeled by the use of constant coefficients and, as the new feature, by additional damping factors.