@article{Zhou-TPDS06,
    author  = "Zhou, X. and Wei, J. and Xu, C.-Z.",
    title   = "Resource allocation for session-based two-dimensional service differentiation on e-Commerce servers",
    journal = "IEEE Trans. on Parallel and Distributed Systems",
    volume  = 17,
    number  = 8,
    year    = 2006,
    pages   = "838--850"
}