%% You should probably cite draft-ietf-ccamp-mpls-tp-rsvpte-ext-associated-lsp instead of this I-D.
@techreport{zhang-mpls-tp-rsvpte-ext-associated-lsp-04,
    number =    {draft-zhang-mpls-tp-rsvpte-ext-associated-lsp-04},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-zhang-mpls-tp-rsvpte-ext-associated-lsp/04/},
    author =    {Fei Zhang and Ruiquan Jing},
    title =     {{RSVP-TE Extensions to Establish Associated Bidirectional LSP}},
    pagetotal = 11,
    year =      2011,
    month =     mar,
    day =       29,
    abstract =  {This document provides a method to bind two unidirectional Label Switched Paths (LSPs) into an associated bidirectional LSP, by increasing a new Association Type in the context of the Extended ASSOCIATION object.},
}