override text for article navigation - Joomla! Forum - community, help and support

i want change "< previous" , "next >" links in article navigation. more precisely want remove less than/greater symbols. assume there language file contains text these links. tell me file? or need override navigation php-file? if so, 1 be?

thanks in advance.

see: layout overrides in joomla: plugin alternative layouts (overriding plugin) @ docs.joomla.org.