Khang, Bạch Hưng, and Đỗ Năng Toàn. “Applying Hausdorff Distance for Estimating Conversion Between Raster and Vector Representations”. <i>Journal of Computer Science and Cybernetics</i>, vol. 16, no. 4, Apr. 2013, pp. 52-58, doi:10.15625/1813-9663/16/4/2923.