rest url and accents

Hi

I want to call rest url to export a folder the folder name contains accent

http://192.168.100.6/zimbra/home/lorenzof/qualità.zip
the bowser convert the url
http://192.168.100.6/zimbra/home/lorenzof/qualit%E0.zip

I receive the error

The requested resource (no such item) is not available.

my OS is centos 4.4 in i18n I have LANG="it_IT.ISO-8859-1"
If I call the the url ad described in wiki

curl -u mylogin:mypawword http://localhost/zimbra/home/lorenzof/qualità.zip > bck.zip

it works well

I think it is a tomcat encoding url problem can someone tell mehow do I have to call the url ?

Thank you