CiNii had been unavailable from 18:00 on Mar. 27 (Thu.) to 18:50 on Mar. 27 (Thu.), 2014 [JST] (March 28, 2014)

CiNii Articles and CiNii Books had been unavailable from 18:00 on Mar. 27 (Thu.) to 18:50 on Mar. 27 (Thu.) due to system failure. We deeply apologize for the inconvenience.