%% You should probably cite rfc3336 instead of this I-D.
@techreport{ietf-pppext-ppp-over-aal2-03,
    number =    {draft-ietf-pppext-ppp-over-aal2-03},
    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-ppp-over-aal2/03/},
    author =    {bruce Buffam and Thima Koren and Bruce Thompson},
    title =     {{PPP Over Asynchronous Transfer Mode Adaptation Layer 2 (AAL2)}},
    pagetotal = 16,
    year =      2002,
    month =     mar,
    day =       4,
    abstract =  {The Point-to-Point Protocol (PPP) {[}1{]} provides a standard method for transporting multi-protocol datagrams over point-to-point links.},
}