Masahiro Shiomi Daisuke Sakamoto Takayuki Kanda Carlos Toshinori Ishi Hiroshi Ishiguro Norihiro Hagita Field Trial of a Networked Robot at a Train Station. 27-40 2011 3 I. J. Social Robotics 1 http://dx.doi.org/10.1007/s12369-010-0077-4 db/journals/ijsr/ijsr3.html#ShiomiSKIIH11