Question:Le code suivant correcte ou nom?
CITATION
<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE students[
<!ENTITY source1 SYSTEM "www.xxxx.com/stud1.xml">
<!ENTITY source2 SYSTEM "www.yyyy.com/stud2.xml">
]>

<students>
&source1;
&source2;
</students>