Look at the CME and Eurex websites under the educational resources section. You should be able to find both white papers in .pdf format as well as some webinars.
None are universal, and tend to be quite specific in terms of applicability. Also, please be very, very cautious about mean reversion or 'fair value' strategies these days. Fading one or two sigma moves, channels / bands, and Fibo levels has been a real shit show for a few years now.