Re: info files genersated by 4.0 and read by 3.12

[TS Pereira]

Hi,

>Thanks, I understand. The 3.12 info would quit at the unrecognized Ref: tag,
>the new 4.0 does not quit at unrecognized tags so will be more 
>forward compatible.
>
>Also, the DDD info files use the new features of 4.0 so they shouldn't
>want to be compatible with old info programs.
>
>from ddd-info:
>
>Tag Table:
>(Indirect)
>Node: Top^_1585
>Node: Summary^_15373
>Ref: Summary-Footnote-1^_18564

Can someone point me in the direction of some documentation about these Ref: 
lines in the tagtable?

I am writing an info viewer at present, and had no knowledge of this until now.

Thanks,
Tom.