%% You should probably cite rfc7792 instead of this I-D.
@techreport{ietf-ccamp-flexible-grid-rsvp-te-ext-04,
    number =    {draft-ietf-ccamp-flexible-grid-rsvp-te-ext-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-ietf-ccamp-flexible-grid-rsvp-te-ext/04/},
    author =    {Fatai Zhang and Xian Zhang and Adrian Farrel and Oscar Gonzalez de Dios and Daniele Ceccarelli},
    title =     {{RSVP-TE Signaling Extensions in support of Flexi-grid DWDM networks}},
    pagetotal = 12,
    year =      2015,
    month =     nov,
    day =       20,
    abstract =  {This memo describes the extensions to the Resource reSerVation Protocol Traffic Engineering (RSVP-TE) signaling protocol to support Label Switched Paths (LSPs) in a GMPLS-controlled network that includes devices using the flexible optical grid.},
}