404. That’s an error.

The requested URL /translate_c?depth=1&hl=de&prev=search&rurl=translate.google.at&sl=en&sp=nmt4&u=http://loop.frontiersin.org/people/378780/publications&usg=ALkJrhgGs1VFasITQLlNXVpUjSnmLR0G_A was not found on this server. That’s all we know.