%% You should probably cite draft-ietf-core-multipart-ct instead of this I-D.
@techreport{fossati-core-multipart-ct-00,
    number =    {draft-fossati-core-multipart-ct-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-fossati-core-multipart-ct/00/},
    author =    {Thomas Fossati},
    title =     {{Multipart Media Type Encoding for CoAP}},
    pagetotal = 6,
    year =      2012,
    month =     apr,
    day =       8,
    abstract =  {This memo defines a new media type encoding that can be used to combine several different media types into a single CoAP message- body.},
}