Myunghoun Jang and  Yongkyu Yi,  Selection of a Tower Crane Using Augmented Reality in Smart Devices.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2013, vol. 82(10). 704 - 707
    [viewed 18 January 2020]. Available from: https://publications.waset.org/pdf/16943.