A SCRATCHPAD solution to problem #7

James H. Griesmer, Richard D. Jenks, David Y. Y. Yun. A SCRATCHPAD solution to problem #7. ACM Comm. Computer Algebra, 9(3):13-17, 1975. [doi]

@article{GriesmerJY75,
  title = {A SCRATCHPAD solution to problem #7},
  author = {James H. Griesmer and Richard D. Jenks and David Y. Y. Yun},
  year = {1975},
  doi = {10.1145/1088309.1088314},
  url = {http://doi.acm.org/10.1145/1088309.1088314},
  researchr = {https://researchr.org/publication/GriesmerJY75},
  cites = {0},
  citedby = {0},
  journal = {ACM Comm. Computer Algebra},
  volume = {9},
  number = {3},
  pages = {13-17},
}