Theoretical Models of Time-Space: The Role of Transport Networks in the Shrinking and Shrivelling of Geographical Space - Methods for Multilevel Analysis and Visualisation of Geographical Networks - page 63

Taylor, P. (2004). World city network, a global urban analysis . Oxon: Routledge.
Tobler, W. R. (1997). Visualizing the impact of transportation on spatial relations .Western
Regional Science Association meeting, Hawaii.
Tobler, W. R. (1999). The world is shriveling as it shrinks . ESRI user conference, San Diego.
Viard, J. (2008). Eloge de la mobilité, essai sur le capital temps libre et la valeur travail .Paris,
France: Editions de l'Aube.