I have a page consisting of multiple articles. Each of these articles is also accessible via individual link. This is the same way as blogs are organized: one page containing all blog entries + permalinks per entry. Shall I bother about duplicate content in this case? Shall I somehow declare with HTML meta tags that individual articles are in fact a part of the page with all articles?
Well, yes like @IAMHeisenberg and other member said it will considered as duplicate content until or unless you find some way out to ....... It will be considered as duplicate content.
I guess I found the solution myself, it is clearly described here https://support.google.com/webmasters/answer/1663744 To fix duplication I refer to the compound-article page with rel="canonical" from each individual article page.