@misc{rfc4290,
    series =    {Request for Comments},
    number =    4290,
    howpublished =  {RFC 4290},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC4290},
    url =       {https://www.rfc-editor.org/info/rfc4290},
    author =    {Dr. John C. Klensin},
    title =     {{Suggested Practices for Registration of Internationalized Domain Names (IDN)}},
    pagetotal = 28,
    year =      2005,
    month =     dec,
    abstract =  {This document explores the issues in the registration of internationalized domain names (IDNs). The basic IDN definition allows a very large number of possible characters in domain names, and this richness may lead to serious user confusion about similar-looking names. To avoid this confusion, the IDN registration process must impose rules that disallow some otherwise-valid name combinations. This document suggests a set of mechanisms that registries might use to define and implement such rules for a broad range of languages, including adaptation of methods developed for Chinese, Japanese, and Korean domain names. This memo provides information for the Internet community.},
}