Bibliographic Section. - David Brownstone; Andrew F. Daughety; Sergio R. Jara-Díaz (Transp. Sci., 1986)

On the Bias Caused by Spatial Aggregation of Flows on the Estimation of the Degree of Scale Economies. - Sergio R. Jara-Díaz; Pedro P. Donoso (Transp. Sci., 1989)

Bibliographic Section. - Sergio R. Jara-Díaz; Susan Hanson; Peter R. Stopher (Transp. Sci., 1991)