1. A theory of the allocation of time;Becker;Econ. J.,1965
2. The demand of air travel: a regression study of time-series and cross sectional data in the U.S. domestic market;Brown,1968
3. Forecast of Scheduled Domestic Air Passenger Traffic for the Eleven Trunkline Carriers;Civil Aeronautics Board,1967
4. A Study of the Domestic Passenger Air Fare Structure;Civil Aeronautics Board,1968
5. Impact of New Large Jets on the Air Transportation System;Civil Aeronautics Board,1969-1973