Stefan Dobrev Rastislav Kralovic Richard Královic Nicola Santoro On fractional dynamic faults with thresholds. 101-117 2008 399 Theor. Comput. Sci. 1-2 http://dx.doi.org/10.1016/j.tcs.2008.02.008 db/journals/tcs/tcs399.html#DobrevKKS08