共 2 条
- [1] SEISMOLOGICAL OBSERVATORIES [J]. PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1962, 50 (11): : 2216 - &
- [2] AN AUTOMATIC MARINE SEISMIC MONITORING AND RECORDING DEVICE [J]. PROCEEDINGS OF THE INSTITUTE OF RADIO ENGINEERS, 1962, 50 (11): : 2209 - &