. . . . "The tunnels were surrounded by barracks, personnel bunkers, and watchtowers. Other buildings were used for operations, administration, and maintenance. Inside each bomb-proof tunnel, there was a rail track and a platform. The tunnel portals were protected by two-wing armoured doors with firing embrasures for the guards. Purpose-built track connected the tunnels with the Rzesz\u00F3w-Jas\u0142o railway."@en . . . "Anlage S\u00FCd"@en . . . "The tunnels were surrounded by barracks, personnel bunkers, and watchtowers. Other buildings were used for operations, administration, and maintenance. Inside each bomb-proof tunnel, there was a rail track and a platform. The tunnel portals were protected by two-wing armoured doors with firing embrasures for the guards. Purpose-built track connected the tunnels with the Rzesz\u00F3w-Jas\u0142o railway."@en .