TY - RPRT TI - Calibration and acceptance testing of the DE-200 digital seismograph with S-6000 and L-4C seismometers AU - D. L. Carver AU - D.R. Cunningham AU - K. W. King PY - 1986 DO - 10.3133/ofr86340 UR - https://pubs.usgs.gov/publication/ofr86340 ID - ofr86340 ER -