G. N. and N. Lenoir, Air and rail: Cooperating and competing?, 2004.
URL : https://hal.archives-ouvertes.fr/hal-01022243

L. I. , N. Lenoir, F. Pita, I. Rebello, and A. Valadares, CARE II: The airport of the future: Central link of intermodal transport?, M3 SYSTEMS, 2004.

L. D. , J. M. Mathieu, D. Gillen, and A. Kanafari, The full cost of high-speed rail: an engineering approach, The Annals of Regional Science, pp.189-215, 1997.