%% You should probably cite rfc8189 instead of this I-D.
@techreport{ietf-alto-multi-cost-09,
    number =    {draft-ietf-alto-multi-cost-09},
    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-multi-cost/09/},
    author =    {Sabine Randriamasy and Wendy Roome and Nico Schwan},
    title =     {{Multi-Cost ALTO}},
    pagetotal = 27,
    year =      2017,
    month =     apr,
    day =       25,
    abstract =  {The ALTO (Application Layer-Traffic Optimization) Protocol ({[}RFC7285{]}) defines several services that return various metrics describing the costs between network endpoints. This document defines a new service that allows an ALTO Client to retrieve several cost metrics in a single request for an ALTO Filtered Cost Map and Endpoint Cost Map. In addition, it extends the constraints to further filter those maps by allowing a client to specify a logical combination of tests on several cost metrics.},
}