%% You should probably cite rfc1963 instead of this I-D.
@techreport{ietf-pppext-sdtp-00,
    number =    {draft-ietf-pppext-sdtp-00},
    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-pppext-sdtp/00/},
    author =    {Kevin W Schneider and Stuart Venters},
    title =     {{PPP Serial Data Transport Protocol (SDTP)}},
    pagetotal = 20,
    year =      1994,
    month =     nov,
    day =       22,
    abstract =  {This document describes a new Network level protocol (from the PPP point of view), PPP Serial Data Transport Protocol, that provides encapsulation and an associated control protocol for transporting serial data streams over a PPP link. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.},
}