Time variation of Cassiopeia A and a new suggestion of the component of the variation
Proceedings article published in 2014 by
Toshiki Sato,
Jacco Vink,
Eveline Helder,
John Hughes 
,
Makoto Sawada,
Motohide Kokubun,
Hiroshi Tsunemi,
Toru Tamagawa,
Yoshitomo Maeda,
Yohko Tsuboi,
Yukikatsu Terada,
Aya Bamba,
Takafumi Takeda,
Poshak Gandhi,
Hironori Matsumoto
and other authors.
,
Makoto Sawada,
Motohide Kokubun,
Hiroshi Tsunemi,
Toru Tamagawa,
Yoshitomo Maeda,
Yohko Tsuboi,
Yukikatsu Terada,
Aya Bamba,
Takafumi Takeda,
Poshak Gandhi,
Hironori Matsumoto
and other authors.
