@misc{rfc1575,
    series =    {Request for Comments},
    number =    1575,
    howpublished =  {RFC 1575},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC1575},
    url =       {https://www.rfc-editor.org/info/rfc1575},
    author =    {Susan Hares and Cathy Wittbrodt},
    title =     {{An Echo Function for CLNP (ISO 8473)}},
    pagetotal = 9,
    year =      1994,
    month =     feb,
    abstract =  {This memo defines an echo function for the connection-less network layer protocol. The mechanism that is mandated here is in the final process of being standardized by ISO as "Amendment X: Addition of an Echo function to ISO 8473" an integral part of Version 2 of ISO 8473. {[}STANDARDS-TRACK{]}},
}