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References for Traintunnel* (Excerpt)
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Austria - Wienerwaldtunnel 13,4 km
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Austria - Bahnhof Flughafen Wien - Schwechat 2,0 km
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Austria - Arlbergtunnel St. Anton - Langen 10,7 km
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Slovakia - TEN-T Korridor Bratislava 2,3 km
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Greek - Neubaustrecke Ioannina - Kalambaka 10,3km

*The references shown here are personal refrences by Mr. Dipl.-HTL-Ing. Bernhard Höpperger
Thermo- and Fluid Dynamics Consulting Engnineer e.U., Dipl.-HTL-Ing. Bernhard Hoepperger, Landesgericht Klagenfurt FN 436834 d, UID ATU 69706918
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