@article{oai:nipr.repo.nii.ac.jp:00001987,
 author = {Higuchi, Hiroshi and Kimura, Iwane and Hashimoto, Kozo and Sato, Natsuo and Tonegawa, Yutaka},
 journal = {Memoirs of National Institute of Polar Research. Special issue},
 month = {Aug},
 note = {P(論文), In reference to the Sunday decrease of VLF activity observed at Siple Station, VLF wave multi-frequency channel data stored in magnetic computer tapes at Syowa Station have been analyzed for the period from July 1981 to December 1983. Using 2s sampling data, at 0.75,1.2 and 2.0kHz, a minimum for every 10s is picked up and is then averaged over one hour. From these hourly ualues for the whole period of analysis, the diurnal variation of the intensity at each frequency for the average of all Sunday data is compared with that drawn for data of the rest of the week (ROW). From this result, we cannot confirm any significant difference on Sunday in comparison with another day of the week.},
 pages = {21--28},
 title = {Dependence of VLF wave activity at Syowa Station on the day of the week},
 volume = {42},
 year = {1986}
}