Damm algorithm: Difference between revisions

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Strengths: Prepending leading zeros does not affect the check digit (a weakness for variable-length codes)
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<ref group="lower-roman" name="BIS2003" >{{cite journal |year=2003 |author1last1=[http://www.math.md/people/beliavscaia-galina/ Beliavscaia |first1=Galina] |author2last2=[http://www.math.md/people/izbas-vladimir/ Izbaş |first2=Vladimir] |author3last3=[http://www.math.md/people/scerbacov-victor/ Şcerbacov |first3=Victor] |title=Check character systems over quasigroups and loops |journal=Quasigroups and Related Systems |volume=10 |issue=[http://www.math.md/en/publications/qrs/issues/v10–n1/ 1] |pages=[http://www.math.md/en/publications/qrs/issues/v10–n1/10592/ 1–28] |url=http://www.math.md/files/qrs/v10-n1/v10-n1-(pp1-28).pdf |issn=1561-2848 }} See page 23.</ref>
<ref group="lower-roman" name="Chen2009">{{cite book |author=Chen Jiannan |year=2009 |chapter=The NP-completeness of Completing Partial anti-symmetric Latin squares |pages=[http://www.academypublisher.com/proc/iwisa09/papers/iwisa09p322.htm 322–324] |chapter-url=http://www.academypublisher.com/proc/iwisa09/papers/iwisa09p322.pdf |title=Proceedings of 2009 International Workshop on Information Security and Application (IWISA 2009) |url=http://www.academypublisher.com/proc/iwisa09/ |publisher=Academy Publisher |isbn=978-952-5726-06-0 }} See page 324.</ref>
<ref group="lower-roman" name="Mileva2009">{{cite journal |date=2009 |last1=Mileva |first1=A. |last2=Dimitrova |first2=V. |title=Quasigroups constructed from complete mappings of a group (Z<sub>2</sub><sup>n</sup>,⊕) |journal=Contributions, Sec. Math. Tech. Sci., MANU/MASA |volume=XXX |issue=1–2 |pages=75–93 |url=http://manu.edu.mk/contributions/NMBSci/Papers/2009_5_Mileva.pdf |issn=0351-3246 }} See page 78.</ref>