%% You should probably cite draft-hao-bess-inter-nvo3-vpn instead of this I-D.
@techreport{hao-l3vpn-inter-nvo3-vpn-01,
    number =    {draft-hao-l3vpn-inter-nvo3-vpn-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-hao-l3vpn-inter-nvo3-vpn/01/},
    author =    {Hao Weiguo and Lucy Yong and Susan Hares and Robert Raszuk and Luyuan Fang and Shahram Davari},
    title =     {{Inter-AS Option B between NVO3 and BGP/MPLS IP VPN network}},
    pagetotal = 11,
    year =      2014,
    month =     sep,
    day =       16,
    abstract =  {This draft describes the solution of inter-as option-B connection between NVO3 network and MPLS/IP VPN network. The ASBR located in NVO3 network is called ASBR-d, the control plane and data plane procedures at ASBR-d are specified in this document, they are different from traditional option-B ASBR defined in {[}RFC 4364{]}.},
}