xml-dev - general external entity reference from a DTD to another one?

["Giorgos Kaltekis" <mcaihgk4@stud.umist.ac.uk>]

can I use a reference to a general external entity within a DTD to refer to another DTD?

For example if I declare

<!ENTITY Chapter1 SYSTEM "chapter1.dtd">

 

can I use the following within a DTD for book, let's say book.dtd :

<!ELEMENT Book (CHAPTER1|CHAPTER2)>

<!ELEMENT CHAPTER1 ("&Chapter1;")>

 

so that I give the CHAPTER1 element the structure described in chapter1.dtd?

 

 

cheers

George