%% You should probably cite rfc2201 instead of this I-D.
@techreport{ietf-idmr-cbt-arch-05,
    number =    {draft-ietf-idmr-cbt-arch-05},
    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-idmr-cbt-arch/05/},
    author =    {Anthony J. Ballardie},
    title =     {{Core Based Trees (CBT) Multicast Routing Architecture}},
    pagetotal = 15,
    year =      1997,
    month =     mar,
    day =       7,
    abstract =  {CBT is a multicast routing architecture that builds a single delivery tree per group which is shared by all of the group's senders and receivers. This memo defines an Experimental Protocol for the Internet community.},
}