grand problème international et militaire : le tunnel sous la Manche : ses rapports avec la sécurité de la France et de la Grande-Bretagne / … agard report Problems of wind tunnel design and testing fontana books tunnel / by Eric Williams Plan voor de aanleg van een IJ-tunnel / voorgest. door T.C. Groot naca wartime report Wind tunnel tests of air inlet and outlet openings on a streamline body / by John V. Becker agardograph Mach number measurements in high-speed wind tunnels / by J.A.F. Hill ... [et al.] Neuere Tunnel-Bauten : Gesteinsbohrmaschinen und Bergeisenbahnen der Gegenwart / H. Zwick Blasting: a handbook for the use of engineers and others engaged in mining, tunnelling, quarrying, [etc.] / O. Guttmann Correspondence with reference to the poposed construction of a Channel Tunnel Zaanstreek Coentunnel / Stichting Zaans Tunnel Komité Hygiene der Berg-, Tunnel- und Hüttenarbeiter / bearb. von M. Füller, C. Meissner, O. Saeger korea policy series Tunnel to aggression