%% You should probably cite rfc9240 instead of this I-D.
@techreport{ietf-alto-unified-props-new-04,
    number =    {draft-ietf-alto-unified-props-new-04},
    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-alto-unified-props-new/04/},
    author =    {Wendy Roome and Shiwei Dawn Chen and Sabine Randriamasy and Y. Richard Yang and Jingxuan Zhang},
    title =     {{Unified Properties for the ALTO Protocol}},
    pagetotal = 30,
    year =      2018,
    month =     jun,
    day =       29,
    abstract =  {This document extends the Application-Layer Traffic Optimization (ALTO) Protocol {[}RFC7285{]} by generalizing the concept of "endpoint properties" to domains of other entities, and by presenting those properties as maps, similar to the network and cost maps in ALTO.},
}