Hennadiy Leontyev James H. Anderson A Unified Hard/Soft Real-Time Schedulability Test for Global EDF Multiprocessor Scheduling. 375-384 2008 RTSS https://doi.org/10.1109/RTSS.2008.15 https://doi.ieeecomputersociety.org/10.1109/RTSS.2008.15 conf/rtss/2008 db/conf/rtss/rtss2008.html#LeontyevA08