@article{checkerboard-2019,
    AUTHOR = {Jiang Caigui and Chi-Han Peng and Peter Wonka and Helmut Pottmann},
     TITLE = {Checkerboard patterns with black rectangles},
   JOURNAL = {ACM Trans. Graphics},
    VOLUME = 38,
    NUMBER = 6,
      YEAR = {2019},
    NOTE = {Proc. SIGGRAPH ASIA},
}