WASET
    Xindong An and  Kai Gu,  Urban Intensification and the Character of Urban Landscape: A Morphological Perspective.   journal   = {International Journal of Architectural and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    August 2018, vol. 141(9). 898 - 902
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/10009565.