I've been reading up on the early formations of the Catholic Church and became fascinated with the Montanist movement. They seemed to be a rather prolific sect of the church based in evangelism and prophesy. However, when trying to research into the actual teachings/writings, they all seemed to be from hundreds of years after the movements' end and used as an illustration of blaspheme. Are there any surviving text of actual Montanist teachings/divination left? Or were these purged along with their excommunication?

Edit: Spelling. Apparently Steve Jobs' autocorrect didn't like them either.