RFCs:

[RFC 3276] Definitions of Managed Objects for High Bit-Rate DSL - 2nd generation (HDSL2) and Single-Pair High-Speed Digital Subscriber Line (SHDSL) Lines.

[RFC 3705] High Capacity Textual Conventions for MIB Modules Using Performance History Based on 15 Minute Intervals.

[RFC 3728] Definitions of Managed Objects for Very High Speed Digital Subscriber Lines (VDSL).

[RFC 4319] Definitions of Managed Objects for High Bit-Rate DSL - 2nd generation (HDSL2) and Single-Pair High-Speed Digital Subscriber Line (SHDSL) Lines.

Publications: