@InProceedings{Alcubierre94b,
    author = {M. Alcubierre and B. Schutz},
    title = {Numerical instabilities associated with gauge modes},
    year = {1996},
    pages = {611},
    editor = {R. T. Jantzen and G. M. Keiser and R. Ruffini},
    address = {Singapore},
    publisher = {World Scientific},
    booktitle = {The Seventh Marcel Grossmann Meeting: On Recent Developments in Theoretical and Experimental General Relativity, Gravitation, and Relativistic Field Theories}
}