Song Wang Kwei-Jay Lin Yu-Chung Wang Hierarchical Budget Management in the RED-Linux Scheduling Framework. 76-83 2002 conf/ecrts/2002 ECRTS http://csdl.computer.org/comp/proceedings/ecrts/2002/1665/00/16650076abs.htm db/conf/ecrts/ecrts2002.html#WangLW02