%% You should probably cite rfc2596 instead of this I-D.
@techreport{ietf-ldapext-lang-01,
    number =    {draft-ietf-ldapext-lang-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-ldapext-lang/01/},
    author =    {Tim Howes and Mark Wahl},
    title =     {{Use of Language Codes in LDAP}},
    pagetotal = 9,
    year =      1998,
    month =     jul,
    day =       17,
    abstract =  {This document describes how language codes are carried in LDAP and are to be interpreted by LDAP servers. {[}STANDARDS-TRACK{]}},
}