Björn Andersson Cecilia Ekelin Exact Admission-Control for Integrated Aperiodic and Periodic Tasks. 76-85 2005 conf/rtas/2005 IEEE Real-Time and Embedded Technology and Applications Symposium http://doi.ieeecomputersociety.org/10.1109/RTAS.2005.22 db/conf/rtas/rtas2005.html#AnderssonE05