[1] RFC 2801 - Internet Open Trading Protocol - IOTP Version 1.0, 2021-04-11T11:36:33.000Z, 2021-04-12T11:18:54.647Z https://tools.ietf.org/html/rfc2801#page-39

[2] RFC 2801 - Internet Open Trading Protocol - IOTP Version 1.0, 2021-04-11T11:36:33.000Z, 2021-04-12T11:19:48.857Z https://tools.ietf.org/html/rfc2801#page-41

[3] RFC 2801 - Internet Open Trading Protocol - IOTP Version 1.0, 2021-04-11T11:36:33.000Z, 2021-04-12T11:39:20.883Z https://tools.ietf.org/html/rfc2801#page-124

[4] RFC 2801 - Internet Open Trading Protocol - IOTP Version 1.0, 2021-04-11T11:36:33.000Z, 2021-04-12T11:40:24.537Z https://tools.ietf.org/html/rfc2801#page-131