@misc{rfc1333,
    series =    {Request for Comments},
    number =    1333,
    howpublished =  {RFC 1333},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC1333},
    url =       {https://www.rfc-editor.org/info/rfc1333},
    author =    {William A. Simpson},
    title =     {{PPP Link Quality Monitoring}},
    pagetotal = 17,
    year =      1992,
    month =     may,
    abstract =  {The Point-to-Point Protocol (PPP) {[}1{]} provides a standard method of encapsulating Network Layer protocol information over point-to-point links. PPP also defines an extensible Link Control Protocol, which allows negotiation of a Quality Protocol for continuous monitoring of the viability of the link. {[}STANDARDS-TRACK{]}},
}