Browsing in a site, i can see the lack of credits to the Coppermine Gallery.
which the procedure to protest?
The Site: http://www.campos.rj.gov.br/album/index.php (http://www.campos.rj.gov.br/album/index.php)
How can I demand that they put the credits of the coppermine?
Sorry my bad english!
;D
The link you posted redirects to http://de.wikipedia.org/wiki/Hypertext_Transfer_Protocol (a non-coppermine page). Anyway, we're aware that there are people who fail to give credit where credit is due. Some of them might have been given a crippled version of coppermine that already had the disclaimer removed without the end users noticing that they have made a mistake. Some might have removed the footer by mistake. Some did on purpose. If you want to tell them, try to find a contact form or email address on their page and send them an email.
There was an error in the bbcode; the site is: http://www.campos.rj.gov.br/album/index.php