Discussion of several theoretical frequency curves proposed by European engineers, for estimating probable revenue of projected railroad lines.
Frequency of railroad trips of various lengths
Die Haeufigkeit verschiedener Reiselaengen im Bahnverkehr
Schweizerische Bauzeitung ; 96 , n 9
1930
2 pages
5 Figs.
Aufsatz (Zeitschrift)
Deutsch
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