@article{oai:u-ryukyu.repo.nii.ac.jp:02019659,
 author = {Nagata, Yasunori and Mukaidono, Masao},
 issue = {2},
 journal = {IEICE Transactions on Information and Systems},
 month = {Feb},
 note = {In this paper, a new encoding/decoding scheme of multiple-valued separable balanced codes is presented. These codes have 2 ∙ m information digits and m ∙ (R - 2) check digits in radices R ≧ 4, 2 ∙ m - 1 information digits and m + 1 check digits in R = 3, where code-length n = R ∙ m. In actual use of code-lengths and radices, it is shown that the presented codes are relatively efficient in comparison with multiple-valued Berger codes which are known as optimal unordered codes. Meanwhile, the optimality of multiple-valued Berger codes is discussed.},
 pages = {99--106},
 title = {On Multiple-Valued Separable Unordered Codes},
 volume = {E79-D},
 year = {1996}
}