Miranda, A. M., E. J. Nunes-Pereira, K. Baskaran, and A. F. Macedo. “Eye Movements, Convergence Distance and Pupil-Size When Reading from Smartphone, Computer, Print and Tablet”. Scandinavian Journal of Optometry and Visual Science, vol. 11, no. 1, July 2018, pp. 1-5, doi:10.5384/sjovs.vol11i1p1-5.