General use of concrete and reinforced concrete on railroads; resistance of rails against breakage and wear; locomotives and rolling stock; relation between railroads and seaports; competition of road transportation; penetration railroads.
Final Summaries Adopted at the Eleventh Session, Madrid (May 1930)
Int. Ry. Congress Assn. -- Bul
International Railway Congress Association ; 1930
1930
5 pages
Conference paper
English
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