JdeBPWhat that manual page tells you is what the source to read is, to confirm that that StackExchange answer is on the level. It gives you the title, publisher, and document ID of the spec; in its "see also" section. DMTF stands for Distributed Management Task Force.
Mastodon mangled the URL that I entered so that the closing bracket was outside of the hyperlink. Here's an alternative query form of it, for completeness.
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