%% You should probably cite rfc8363 instead of this I-D.
@techreport{ietf-ccamp-flexible-grid-ospf-ext-09,
    number =    {draft-ietf-ccamp-flexible-grid-ospf-ext-09},
    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-ospf-ext/09/},
    author =    {Xian Zhang and Haomian Zheng and Ramon Casellas and Oscar Gonzalez de Dios and Daniele Ceccarelli},
    title =     {{GMPLS OSPF-TE Extensions in Support of Flexi-Grid Dense Wavelength Division Multiplexing (DWDM) Networks}},
    pagetotal = 17,
    year =      2017,
    month =     feb,
    day =       16,
    abstract =  {The International Telecommunication Union Telecommunication standardization sector (ITU-T) has extended its Recommendations G.694.1 and G.872 to include a new Dense Wavelength Division Multiplexing (DWDM) grid by defining channel spacings, a set of nominal central frequencies, and the concept of the "frequency slot". Corresponding techniques for data-plane connections are known as "flexi-grid". Based on the characteristics of flexi-grid defined in G.694.1 and in RFCs 7698 and 7699, this document describes the Open Shortest Path First - Traffic Engineering (OSPF-TE) extensions in support of GMPLS control of networks that include devices that use the new flexible optical grid.},
}