@misc{rfc1331,
    series =    {Request for Comments},
    number =    1331,
    howpublished =  {RFC 1331},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC1331},
    url =       {https://www.rfc-editor.org/info/rfc1331},
    author =    {William A. Simpson},
    title =     {{The Point-to-Point Protocol (PPP) for the Transmission of Multi-protocol Datagrams over Point-to-Point Links}},
    pagetotal = 69,
    year =      1992,
    month =     may,
    abstract =  {This document defines the PPP encapsulation scheme, together with the PPP Link Control Protocol (LCP), an extensible option negotiation protocol which is able to negotiate a rich assortment of configuration parameters and provides additional management functions. {[}STANDARDS-TRACK{]}},
}