Tsai, Yichang, 1963-. "Curve safety improvements using mobile device and automatic curve sign detection." University of Georgia. Map and Government Information Library. 2021-05, https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bt700-pr4-bm1-b2019-bc8-bpt-p-b2-belec-p-btext.

Tsai, Yichang, 1963- (2021-05). Curve safety improvements using mobile device and automatic curve sign detection. Retrieved from https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bt700-pr4-bm1-b2019-bc8-bpt-p-b2-belec-p-btext

Tsai, Yichang, 1963-. "Curve safety improvements using mobile device and automatic curve sign detection." 2021-05. June 22, 2025. https://dlg.galileo.usg.edu/do:dlg_ggpd_s-ga-bt700-pr4-bm1-b2019-bc8-bpt-p-b2-belec-p-btext.