Kiyohide Kokubun

A bending and stretching mode crystal oscillator as a friction vacuum gauge

Masahiro Hirata, Yoshitsugu Toda, H. Murakami, 1984 .

Frequency dependence of a quartz oscillator on gas pressure

Masahiro Hirata, Yoshitsugu Toda, H. Murakami, 1985 .

Unified formula describing the impedance dependence of a quartz oscillator on gas pressure

Masahiro Hirata, Yoshitsugu Toda, H. Murakami, 1987 .