1. S.Hashimoto, T.Tanaka, K.Aoki, K.Fujita "Estimation of Interruplibilily during Office Work Based on PC Activity and Conversation", HIMI Conference paper pp. 297--306 (July 2013).
2. L. Zhuang, F. Zhou, J. D. Tygar, "Keyboard Acoustic Emanations Revisited", In Proceeding of the 12th ACM Conference on Computer and Communications Security, pp. 373--382 (November 2005).
3. Y. Miyata D. A. Norman "Psychological issues in support of multiple activities" User centered system design pp.265-284 (January 1986)
4. November 2010;Joly A.
5. B. Schilit, N. Adams, R. Want, "Context-Aware Computing Applications" IEEE Workshop on Mobile Computing Systems and Applications (WMCSA) pp.85-90 (1994).