View at Google Books Elena Zanzu, M.A. Il Trapezio Oscillante: Storie di Circo nell'Aria. (The Swinging Trapeze: Histories of the Circus in the Air.) Bologna University, Italy, 2004-2005. Language: Italian. Rebekah Leach and Julianna Hane. The Aerial Hoop Manual Volume 1. AerialDancing.com External links Aerial Arts FAQ (From Simply Circus) Lyra Tutorials Page (From Simply Circus) Coggs' Circus Q/A (Lyra): U.S. Aerial Lyra Champion 2015 Rebekah Burke (From ) This article articulates how someone built an aerial hoop-- the key tool is a hydraulic pipe bender. Circus equipment