1. Amemiya T (1981) Qualitative Response Models. Journal of Economic Literature 19: 1481–1536.
2. Baños-Pino J, Coto-Millán P, Inglada V (2003) Passenger’s Choice of Air Transport under Road Competition: The Use of the Cointegration Techniques. In: Coto-Millán, P. (Ed.) Essays on Microeconomics and Industrial Organisation. Physica-Verlag. 2nd edition, Springer, pp 10–27.
3. Becker G (1965) A Theory of the Allocation of Time. The Economic Journal 75: 493–517.
4. Coto-Millán P, Baños-Pino J, Inglada V (1997) Marshallian Demands of Intercity Passenger Transport in Spain: 1980–1992. Transportation Research-E 33, 2: 79–96.
5. Coto-Millán P, Baños-Pino J, Inglada V (1999) Railway Inter-urban Passenger Transport in Spain: A Cointegration Analysis. World Transport Research. (Selected Papers). Transport Modelling/Assessment Vol. 3: 161–170. Pergamon.