%% You should probably cite rfc2540 instead of this I-D.
@techreport{ietf-dnssec-ddi-06,
    number =    {draft-ietf-dnssec-ddi-06},
    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-dnssec-ddi/06/},
    author =    {Donald E. Eastlake 3rd},
    title =     {{Detached Domain Name System (DNS) Information}},
    pagetotal = 6,
    year =      1998,
    month =     oct,
    day =       14,
    abstract =  {A standard format is defined for representing detached DNS information. This is anticipated to be of use for storing information retrieved from the Domain Name System (DNS), including security information, in archival contexts or contexts not connected to the Internet. This memo defines an Experimental Protocol for the Internet community.},
}