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Improvement of Timemarker for Drum-recorder
YAMADA, Isao, OOIDA, Tooru, AOKI, HarumiVolume:
23
Year:
1970
Journal:
Zisin (Journal of the Seismological Society of Japan. 2nd ser.)
DOI:
10.4294/zisin1948.23.3_240
File:
PDF, 248 KB
1970