1. [I] Coe, P.L.,Chambers,J.R. and Letko, W."Asymrnetric Lateral-Directional Characteristics of Pointed Bodies of Revolutionat High Angles of Attack,"NASA TN D-7095, Nov. 1972.
2. Letko, W."A Low Speed Experimental Study of the Directional Characteristics of a Sharped-Nosed Fuselage through a Large Angle of Attack Range at Zero Angle of Side-Slip,"NACA TN2911,Oct. 1952.