%% You should probably cite rfc8328 instead of this I-D.
@techreport{liu-policy-based-management-framework-00,
    number =    {draft-liu-policy-based-management-framework-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-liu-policy-based-management-framework/00/},
    author =    {Will (Shucheng) LIU and Chongfeng Xie and John Strassner and Georgios Karagiannis and Maxim Klyus and Jun Bi and Ying Cheng and Dacheng Zhang},
    title =     {{Policy-Based Management Framework for the Simplified Use of Policy Abstractions (SUPA)}},
    pagetotal = 15,
    year =      2017,
    month =     sep,
    day =       28,
    abstract =  {The Simplified Use of Policy Abstractions (SUPA) policy-based management framework defines base YANG data models to encode policy. These models point to device-, technology-, and service-specific YANG data models developed elsewhere. Policy rules within an operator's environment can be used to express high-level, possibly network-wide, policies to a network management function (within a controller, an orchestrator, or a network element). The network management function can then control the configuration and/or monitoring of network elements and services. This document describes the SUPA basic framework, its elements, and interfaces.},
}