VMT Suzanne,
What is VMT?

I must be particularly stupid today.
The problem is:
Each article goes text -- end notes -- biblio. Then,
what I would like to do is to place the next article
If I put the cursor at the end of the bibliography I can't
insert a break (the box is grey/gray)
Did you type this bibliography yourself, or was it generated by a program
like EndNote?

I can't place a section break between the end notes and
the biblio either.
I have a strong suspicion that you typed the biblio in "endnote space" and
that Word considers the entire biblio part of an endnote. (this can't
happen if you use Normal View)

If I put the cursor at the end of the text and insert a
break then insert the next article the endnotes all run on
Did you finish that sentence? Anyhow, go to File | Page Setup, Layout tab,
(with cursor in an early section) and make sure "suppress endnotes" is not
checked for any section. The proper place to put the section break is after
the text, but if you want the biblio after the notes, you will need another
section break between notes and biblio.

I have specified that the end notes should be placed at
the end of each section.
You may want to switch to Normal View, and then Word will hide the endnotes
from you and you don't have to worry about them, it can make it easier.
That will also tell you whether the biblio is in endnote space, if it
vanishes.

What your final product should be:
Article text, then section break, then biblio, another section break, text
of next article...and so forth. Set endnotes to end of section, make sure
"suppress endnotes" is not checked anywhere, and Word will put them after
the article text in each case.

--
Daiya Mitchell, MVP Mac/Word
Word FAQ: http://www.word.mvps.org/
MacWord Tips: http://www.word.mvps.org/MacWordNew/
What's an MVP? A volunteer! Read the FAQ: http://mvp.support.microsoft.com/