-  Tomoya Nakatani, Takuya Maekawa, Masumi Shirakawa, and Takahiro Hara, "Estimating the Physical Distance between Two Locations with Wi-Fi Received Signal Strength Information Using Obstacle-Aware Approach," Proc. of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), volume 2, number 130, September 2018.
-  Taye Mulugeta, Lei Shu, Manfred Hauswirth, Zhangbing Zhou, and Shojiro Nishio, "Secured Geographic Forwarding in Wireless Multimedia Sensor Networks," Journal of Information Processing, volume 20, number 1, pages 54-64 January 2012.
-  Taye Mulugeta, Lei Shu, Manfred Hauswirth, Min Chen, Takahiro Hara, and Shojiro Nishio, "Secured Two Phase Geographic Forwarding Protocol in Wireless Multimedia Sensor Networks," Proc. of IEEE Global Communication Conference (Globecom 2010), pages 1-6 December 2010.
-  Takuya Maekawa, Takahiro Hara, and Shojiro Nishio, "Two Aproaches to Browse Large Web Pages Using Mobile Devices (Demo Paper)," Proc. of Intl Conf. on Mobile Data Management (MDM 2006), May 2006.
-  Tsutomu Terada, Masahiko Tsukamoto, and Shojiro Nishio, "A Portable Electric Bass Using Two PDAs," In Proc. of International Workshop on Entertainment Computing (IWEC 2002), pages 286-293 May 2002.
-  Satoshi Nakamura, Masahiko Tsukamoto, and Shojiro Nishio, "A Method of Key Input with Two Mice," In Proc. of 5th International Symposium on Wearable Computers(ISWC 2001), pages 13-20 October 2001.
-  Budiarto, Kaname Harumoto, Masahiko Tsukamoto, and Shojiro Nishio, "Performance Evaluation of Two Step Locking Protocol for Location Databases in Mobile Environment," In Proc. of IEEE Pacific Rim Conference on Communications, Computers and Signal Processing (PACRIM 1999), pages 254-257 August 1999.