Gil, J., and S. Read. “Patterns of Sustainable Mobility and the Structure of Modality in the Randstad City-Region”. A|Z ITU JOURNAL OF THE FACULTY OF ARCHITECTURE, vol. 11, no. 2, Dec. 2014, p. 231 - 254, https://www.az.itu.edu.tr/index.php/jfa/article/view/464.