%% You should probably cite draft-i2nsf-capability or draft-ietf-i2nsf-capability instead of this I-D.
@techreport{xibassnez-i2nsf-capability-02,
    number =    {draft-xibassnez-i2nsf-capability-02},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-xibassnez-i2nsf-capability/02/},
    author =    {Liang Xia and John Strassner and Cataldo Basile and Diego Lopez},
    title =     {{Information Model of NSFs Capabilities}},
    pagetotal = 57,
    year =      2017,
    month =     jul,
    day =       3,
    abstract =  {This document defines the concept of an NSF (Network Security Function) Capability, as well as its information model. Capabilities are a set of features that are available from a managed entity, and are represented as data that unambiguously characterizes an NSF. Capabilities enable management entities to determine the set offer features from available NSFs that will be used, and simplify the management of NSFs.},
}