%% You should probably cite rfc3077 instead of this I-D.
@techreport{ietf-udlr-lltunnel-06,
    number =    {draft-ietf-udlr-lltunnel-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-udlr-lltunnel/06/},
    author =    {Walid Dabbous and Noboru Fujii and Emmanuel Duros and Dr. Yongguang Zhang and Hidetaka Izumiyama},
    title =     {{A Link-Layer Tunneling Mechanism for Unidirectional Links}},
    pagetotal = 25,
    year =      2001,
    month =     feb,
    day =       8,
    abstract =  {This document describes a mechanism to emulate full bidirectional connectivity between all nodes that are directly connected by a unidirectional link. {[}STANDARDS-TRACK{]}},
}