TY - RPRT TI - Three-month performance evaluation of the Nanometrics, Inc., Libra Satellite Seismograph System in the northern California Seismic Network AU - David H. Oppenheimer PY - 2000 DO - 10.3133/ofr00330 UR - https://pubs.usgs.gov/publication/ofr00330 ID - ofr00330 ER -