For what language editions of Wikipedia do no traditional encyclopedia counterparts exist?

In English, it's easy to point to Britannica, in German, there's Brockhaus, et cetera. What languages (for which there is an edition of Wikipedia) don't have a native-language encyclopedia of the traditional sort? Which one is the most widely-spoken of those?
Update: MyWikiBiz, there are a number of references that use simplified English of some kind. Aside from it being an obvious special case (the language is essentially English), it's not a stupid thing at all—in particular for people who speak English as a second language ("ESL"). Would you call them... show more MyWikiBiz, there are a number of references that use simplified English of some kind. Aside from it being an obvious special case (the language is essentially English), it's not a stupid thing at all—in particular for people who speak English as a second language ("ESL"). Would you call them "stupid"?
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