L'Hostis, Alain, and Hervé Baptiste. “A Transport Network for a City Network in the Nord-Pas-De-Calais Region: Linking the Performance of the Public Transport Service With the Perspectives of a Monocentric or a Polycentric Urban System”. European Journal of Spatial Development, vol. 4, no. 2, Oct. 2006, pp. 1-18, doi:10.5281/zenodo.5136992.