%% You should probably cite draft-ietf-opsawg-vmm-mib instead of this I-D.
@techreport{asai-vmm-mib-04,
    number =    {draft-asai-vmm-mib-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-asai-vmm-mib/04/},
    author =    {Hirochika Asai and Michael MacFaden and Jürgen Schönwälder and 関谷 勇司 and Keiichi Shima and Tina Tsou (Ting ZOU) and Cathy Zhou and Hiroshi Esaki},
    title =     {{Management Information Base for Virtual Machines Controlled by a Hypervisor}},
    pagetotal = 49,
    year =      2013,
    month =     jul,
    day =       2,
    abstract =  {This document defines a portion of the Management Information Base (MIB) for use with network management protocols in the Internet community. In particular, this specifies objects for managing virtual machines controlled by a hypervisor (a.k.a. virtual machine manager).},
}