%% You should probably cite rfc4905 instead of this I-D.
@techreport{martini-l2circuit-encap-mpls-12,
    number =    {draft-martini-l2circuit-encap-mpls-12},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-martini-l2circuit-encap-mpls/12/},
    author =    {Nasser El-Aawar and Luca Martini and Eric C. Rosen},
    title =     {{Encapsulation Methods for Transport of Layer 2 Frames over MPLS Networks}},
    pagetotal = 20,
    year =      2006,
    month =     sep,
    day =       10,
    abstract =  {This document describes methods for encapsulating the Protocol Data Units (PDUs) of layer 2 protocols such as Frame Relay, Asynchronous Transfer Mode (ATM), or Ethernet for transport across an MPLS network. This document describes the so-called "draft-martini" protocol, which has since been superseded by the Pseudowire Emulation Edge to Edge Working Group specifications described in RFC 4447 and related documents. This memo defines a Historic Document for the Internet community.},
}