%% You should probably cite rfc5127 instead of this I-D.
@techreport{ietf-tsvwg-diffserv-class-aggr-07,
    number =    {draft-ietf-tsvwg-diffserv-class-aggr-07},
    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-tsvwg-diffserv-class-aggr/07/},
    author =    {Fred Baker and Kwok Ho Chan and Jozef Babiarz},
    title =     {{Aggregation of Diffserv Service Classes}},
    pagetotal = 19,
    year =      2007,
    month =     nov,
    day =       5,
    abstract =  {In the core of a high-capacity network, service differentiation may still be needed to support applications' utilization of the network. Applications with similar traffic characteristics and performance requirements are mapped into Diffserv service classes based on end- to-end behavior requirements of the applications. However, some network segments may be configured in such a way that a single forwarding treatment may satisfy the traffic characteristics and performance requirements of two or more service classes. In these cases, it may be desirable to aggregate two or more Diffserv service classes into a single forwarding treatment. This document provides guidelines for the aggregation of Diffserv service classes into forwarding treatments. This memo provides information for the Internet community.},
}