Mihai Duguleana and  Florin Girbacia and  Cristian Postelnicu and  Raffaello Brodi and  Marcello Carrozzino,  Exploring Pisa Monuments Using Mobile Augmented Reality.   journal   = {International Journal of Computer and Information Engineering}, [online]. World Academy of Science, Engineering and Technology.
    September 2016, vol. 119(11). 1938 - 1941
    [viewed 07 December 2021]. Available from: https://publications.waset.org/pdf/10005700.