Alan Burns Andy J. Wellings Fengxiang Zhang Combining EDF and FP Scheduling: Analysis and Implementation in Ada 2005. 119-133 2009 Ada-Europe http://dx.doi.org/10.1007/978-3-642-01924-1_9 conf/adaEurope/2009 db/conf/adaEurope/adaEurope2009.html#BurnsWZ09