After a browse by author/subject, it's impossible to see more than 1 page of results if there is a special character (accent) in the author or subject.
To reproduce the problem :
1. browse by subjet
2. choose a subject with a special character and more than 20 results :
( e.g. for the moment : http://www.epsilon.insee.fr/jspui/browse?type=subject&order=ASC&rpp=20&value=Cr%C3%A9ation+d%27emploi)
It displays item 1-20 of 86
3. click next ("suivant")
4. It displays the No result page whereas item 21-40 were expected.