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Studier i svensk godstransportutveckling med särskild hänsyn till lastbilismens expansion efter 1920
Krantz, Olle, (1972)
An essay on the laws of trade in reference to the works of internal improvement in the United States
Ellet, Charles, (1966)
Der Straßengütertransport von und zu dem Nieuwe Waterweg-Gebiet im Spiegel der Statistik
Vahrenhorst, Willi Eberhard, (1971)
Nonlinear activity analysis
Williams, A. C., (1970)
Financial Measurement of Capital Investments
Williams, A. C., (1966)
The Use of Linear Programming and Mathematical Models in Under-Ground Oil Production
Aronofsky, J. S., (1962)