%% You should probably cite rfc1473 instead of this I-D.
@techreport{ietf-pppext-ipcpmib-04,
    number =    {draft-ietf-pppext-ipcpmib-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-ietf-pppext-ipcpmib/04/},
    author =    {Frank Kastenholz},
    title =     {{The Definitions of Managed Objects for the IP Network Control Protocol of the Point-to-Point Protocol}},
    pagetotal = 10,
    year =      1993,
    month =     may,
    day =       11,
    abstract =  {This memo defines a portion of the Management Information Base (MIB) for use with network management protocols in TCP/IP-based internets. In particular, it describes managed objects used for managing the IP Network Control Protocol on subnetwork interfaces using the family of Point-to-Point Protocols {[}8, 9, 10, 11, \& 12{]}. {[}STANDARDS-TRACK{]}},
}