%% You should probably cite draft-ietf-ospf-two-part-metric instead of this I-D.
@techreport{zzhang-ospf-two-part-metric-01,
    number =    {draft-zzhang-ospf-two-part-metric-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-zzhang-ospf-two-part-metric/01/},
    author =    {Lili Wang and Dave DuBois and Vibhor Julka and Tom McMillan and Zhaohui (Jeffrey) Zhang},
    title =     {{OSPF Two-part Metric}},
    pagetotal = 8,
    year =      2014,
    month =     feb,
    day =       13,
    abstract =  {This document specifies an optional extension to the OSPF protocol, to represent the metric on a multi-access network as two parts: the metric from a router to the network, and the metric from the network to the router. The router to router metric would be the sum of the two.},
}