@conference{6427, author = {Sam Richman and J. Giaime and D. Newell and R. Stebbins and Peter Bender and James Faller}, title = {Progress on low-frequency active vibration isolation for gravitational wave detectors}, year = {1997}, month = {04/1997}, publisher = {AIP}, url = {http://flux.aps.org/meetings/YR97/BAPSAPR97/abs/S1280003.html}, }