%% You should probably cite rfc3618 instead of this I-D.
@techreport{ietf-msdp-spec-20,
    number =    {draft-ietf-msdp-spec-20},
    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-msdp-spec/20/},
    author =    {David Meyer and Bill Fenner (ˢˣˠ)},
    title =     {{Multicast Source Discovery Protocol (MSDP)}},
    pagetotal = 19,
    year =      2003,
    month =     may,
    day =       27,
    abstract =  {The Multicast Source Discovery Protocol (MSDP) describes a mechanism to connect multiple IP Version 4 Protocol Independent Multicast Sparse-Mode (PIM-SM) domains together. Each PIM-SM domain uses its own independent Rendezvous Point (RP) and does not have to depend on RPs in other domains. This document reflects existing MSDP implementations.},
}