%% You should probably cite rfc8030 instead of this I-D.
@techreport{ietf-webpush-protocol-12,
    number =    {draft-ietf-webpush-protocol-12},
    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-webpush-protocol/12/},
    author =    {Martin Thomson and Elio Damaggio and Brian Raymor},
    title =     {{Generic Event Delivery Using HTTP Push}},
    pagetotal = 31,
    year =      2016,
    month =     oct,
    day =       21,
    abstract =  {This document describes a simple protocol for the delivery of real- time events to user agents. This scheme uses HTTP/2 server push.},
}