%% You should probably cite draft-ietf-pce-wson-routing-wavelength instead of this I-D.
@techreport{lee-pce-wson-routing-wavelength-05,
    number =    {draft-lee-pce-wson-routing-wavelength-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-lee-pce-wson-routing-wavelength/05/},
    author =    {Greg M. Bernstein},
    title =     {{PCEP Requirements for WSON Routing and Wavelength Assignment}},
    pagetotal = 11,
    year =      2009,
    month =     jun,
    day =       29,
    abstract =  {This memo provides application-specific requirements for the Path Computation Element communication Protocol (PCEP) for the support of Wavelength Switched Optical Networks (WSON). Lightpath provisioning in WSONs requires a routing and wavelength assignment (RWA) process. From a path computation perspective, wavelength assignment is the process of determining which wavelength can be used on each hop of a path and forms an additional routing constraint to optical light path computation. Requirements related to optical impairments will be addressed in a separate document. Conventions used in this document The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in {[}RFC2119{]}.},
}