If you are not lazy, virtually every project that comes out on a daily basis on the announcement sub-section of the forum have whitepaper attached to it even those that have been successful and those that are otherwise. All you need to do is to download tons of them and start your review from there but I suggests you streamline the ones you want to use as a model before you start. On the right format to publish, I don't think there is a generally acceptable way to make that happen but in your review, you can get a clue about what is expected by the community.