Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
IKEGAMI Takeshi and WATABE Ken-ichi,An Ultra-Stable Microwave Oscillator using a Cryogenic Sapphire Crystal Towards the Most Stable Oscillator on Earth,TEION KOGAKU (Journal of Cryogenics and Superconductivity Society of Japan),03892441,CRYOGENICS AND SUPERCONDUCTIVITY SOCIETY OF JAPAN,2015,50,6,322-329,https://cir.nii.ac.jp/crid/1390001204614592512,https://doi.org/10.2221/jcsj.50.322