%% You should probably cite rfc3063 instead of this I-D.
@techreport{ietf-mpls-loop-prevention-03,
    number =    {draft-ietf-mpls-loop-prevention-03},
    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-mpls-loop-prevention/03/},
    author =    {Yoshihiro Ohba and Yasuhiro Katsube and Paul Doolan and Eric C. Rosen},
    title =     {{MPLS Loop Prevention Mechanism}},
    pagetotal = 44,
    year =      2000,
    month =     apr,
    day =       27,
    abstract =  {This paper presents a simple mechanism, based on "threads", which can be used to prevent Multiprotocol Label Switching (MPLS) from setting up label switched path (LSPs) which have loops. This memo defines an Experimental Protocol for the Internet community.},
}