%% You should probably cite draft-busibel-teas-yang-path-computation instead of this I-D.
@techreport{busibel-ccamp-path-computation-api-00,
    number =    {draft-busibel-ccamp-path-computation-api-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-busibel-ccamp-path-computation-api/00/},
    author =    {Italo Busi and Sergio Belotti and Victor Lopez and Oscar Gonzalez de Dios and ansharma@infinera.com and Yan Shi and Ricard Vilalta and Karthik Sethuraman},
    title =     {{Path Computation API}},
    pagetotal = 18,
    year =      2016,
    month =     jul,
    day =       8,
    abstract =  {There are scenarios, typically in a hierarchical SDN context, in which an orchestrator may not have detailed information to be able to perform an end-to-end path computation and would need to request lower layer/domain controllers to calculate some (partial) feasible paths. Multiple protocol solutions can be used for communication between different controller hierarchical levels. This document assumes that the controllers are communicating using YANG-based Application Programming Interface (APIs). This document describes some use cases for an Application Programming Interface for path computation. A related yang model will be proposed in a next version or in another document.},
}