3[6]Safety systems in underground tunnels of the Bilbao metro.Tunneling and Underground Space Technology , 2004, 19(4-5):309
4[8]Mashimo, H.. State of the road tunnel safety technology in Japan. Tunneling and Underground Space Technology,2002,17 ( 2 ): 145-152
5[9]Yamada, N.; Ota, Y.. Safety Systems for the Trans-Tokyo Bay Highway Tunnel Project. Tunneling and Underground Space Technology, 1999, 14 ( 1 ) : 3-12
6[10]Beroggi, Giampiero E.G.. Integrated safety planning for underground systems. Journal of Hazardous Materials ,2000,71 ( 1-3 ): 17-34
