Ref: Porta, S. Romice, O. Maxwell, J. A. Russell, P. Baird, D. (2014), Alterations in scale: Patterns of change in main street networks across time and space, pre-print online at: http://usj.sagepub.com/content/early/2014/02/07/0042098013519833.
Link to Urban Studies pre-print:
http://usj.sagepub.com/content/early/2014/02/07/0042098013519833