References

Unresolved reference

1956 · External reference

The miniflex-Laurent translog flexible functional form

10.1016/0304-4076(85)90130-7 · 1985 · External reference

Which regions really benefit from rail-truck substitution? Empirical evidence for Italy

10.1111/j.1435-5597.1995.tb00627.x · 1995 · External reference

The Importance of Market Definition in the Assessment of the Competitive Relationship between Rail and Truck Transportation

1989 · External reference

Flexible functional forms and regularity: assessing the competitive relationship between rail and truck transportation

10.2307/2109602 · 1990 · External reference

The future of European transport

1993 · External reference

Transportation choices for sustainable development

1994 · External reference

Global properties of flexible functional frontiers

1980 · External reference

Transcendental logarithmic production frontiers

10.2307/1927992 · 1973 · External reference

Green paper

1991 · External reference

Automotive emissions in developing countries—relative implications for global warming, acidification and urban air quality

1993 · External reference

Unresolved reference

1993 · External reference

Libro Bianco. Il trasporto delie merci in Italia

1993 · External reference

A derived demand function for freight transportation

10.2307/1927111 · 1980 · External reference

Valuation of environmental externalities: from theory to decision-making

1996 · External reference

Unresolved reference

1990 · External reference

Unresolved reference

1987 · External reference

Roads towards environmentally sustainable transport

1994 · External reference

Unresolved reference

1970 · External reference