Leana Golubchik V. S. Subrahmanian Sherry Marcus Joachim Biskup Sync Classes: A Framework for Optimal Scheduling of Requests in Multimedia Storage Servers. 60-77 2000 12 IEEE Trans. Knowl. Data Eng. 1 http://www.computer.org/tkde/tk2000/k0060abs.htm db/journals/tkde/tkde12.html#GolubchikSMB00