U491.5+2
李美玲,陈雅楠,冉晋,等.高速公路指路标志系统研究进展[J]. Journal of China and Foreign Highway,2023,43(6):328-335.
LI Meiling, CHEN Yanan, RAN Jin, et al. Research progress es on guide sign system of highways[J]. Journal of China and Foreign Highway,2023,43(6):328-335.