Method is developed for determining most economical level for railways crossing valleys and mountainous regions; most economical level of tunnels.
Most economical level of roads and railway track in the crossing of valleys and elevations
Wirtschaftlich gunstigste Hohenlage von Strassen und Eisenbahnen bei der Ueberschreitung von Talern und Hohen
Archiv fur Eisenbahnwesen ; 1926 , n 6
1926
20 pages
8 Figs.
Article (Journal)
German
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