Orthogonal Sudoku Squares: 11214

Solomon W. Golomb, Kyle Calderhead. Orthogonal Sudoku Squares: 11214. The American Mathematical Monthly, 115(2):167-168, 2008. [doi]

@article{GolombC08,
  title = {Orthogonal Sudoku Squares: 11214},
  author = {Solomon W. Golomb and Kyle Calderhead},
  year = {2008},
  url = {http://www.jstor.org/stable/27642432},
  researchr = {https://researchr.org/publication/GolombC08},
  cites = {0},
  citedby = {0},
  journal = {The American Mathematical Monthly},
  volume = {115},
  number = {2},
  pages = {167-168},
}