How can I tell if an article exists in another language Wikipedia?
We try and build links between different language pages — that’s one way of seeing if an article exists elsewhere. If you don’t see the language links at the top of a page, go looking for the corresponding article(s) on foreign Wikipedias. If you find them, make a link both ways; if not, you can translate. Bear in mind that article may not be in one-to-one correspondence between Wikipedias. See Indopedia:Interlanguage links and Indopedia:Multilingual coordination for more information.