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A review of new demand elasticities with special reference to short and long run effects of price changes
Goodwin, P. B., (1992)
A survey of recent estimates of price elasticities of demand for transport
Oum, Tae Hoon, (1990)
Price and income elasticities for intercity public transport in Spain
Coto-Millán, Pablo, (2007)
A survey of productivity and efficiency measurement in rail transport
Oum, Tae Hoon, (1999)