Focus+Glue+Context: an improved fisheye approach for web map services. - Daisuke Yamamoto; Shotaro Ozeki; Naohisa Takahashi (GIS, 2009)

Wired Fisheye Lens: A Motion-Based Improved Fisheye Interface for Mobile Web Map Services. - Daisuke Yamamoto; Shotaro Ozeki; Naohisa Takahashi (W2GIS, 2009)