@Article{Alcubierre98b,
    author = {M. Alcubierre and S. Brandt and B. Br{\"u}gmann and C. Gundlach and J. Mass{\'o} and P. Walker},
    title = {Test-beds and applications for apparent horizon finders in numerical relativity},
    journal = {Class. Quant. Grav.},
    year = {2000},
    volume = {17},
    pages = {2159-2190},
    eprint = {gr-qc/9809004}
}