- A Brief Look at the Hatz CB-1 Wing Spar, Streamline Designs, LLC, MR-2008-005-01a, 2p.
- Hatz Stress Analysis, Dr. Uhlig, HBA Newzletter, Vol. 4 No. 2, Pgs 2 and 11.
- Structural Analysis of Hatz Airplanes, Jurg Muller, HBA Newzletter, Vol. 9 No. 4, Pgs 10-12.
- Structural Analysis of a Hatz CB-1 Biplane, Jurg Muller, 69p. Comprehensive Engineering Report: Membership Content (Join HBA)
- Comparison of Wing Strength of Kelly-D and Hatz, Jurg Muller, 3p.