As a writer of books, I would love to see that an article was split up in several pages.
An option (as suggested elsewhere by ARI) could be to insert a code like {pageseperator}, but as a writer, one just taps the keyboard, when inspired, not being too concerned about the layout of the outcome. An automated article splitter, would therefore be much more useful.

I'm not the great programmer, but I could imagine, that the program could "read" when the text reach the bottom of the book page, and there split the article to continue the next book page(s).

This way each article could be one chapter on a book, and the category of articles, would the be the full book.