@Article{Allen99b,
    author = {G. Allen and W. Benger and C. Hege and J. Mass\'o and A. Merzky and T. Radke and E. Seidel and J. Shalf},
    title = {Solving Einstein's Equations on Supercomputers},
    journal = {IEEE Computer},
    year = {1999},
    key = {Allen99b},
    volume = {32},
    number = {12},
    note = {{\tt http://www.computer.org/computer/articles/einstein\_1299\_1.htm}}
}