1. Walsh MJ. Riblets. In: Bushnell DM, Hefner JN, editors. Viscous drag reduction in boundary layers. American Institute of Aeronautics and Astronautics, Washington, DC 1989. p. 203–61.
2. Anders Jr. JB. Outer-layer manipulators for turbulent drag reduction. In: Bushnell DM, Hefner JN, editors. Viscous drag reduction in boundary layers. American Institute of Aeronautics and Astronautics, Washington, DC, 1989. p. 203–61.
3. Takagi S. Extended measurements in turbulent boundary layer manipulated by ribbon plates. AIAA Paper 87-0362, 1987.
4. An outline of the techniques available for the measurement of skin friction in turbulent boundary layers;Winter;Prog Aerospace Sci,1977
5. Hanratty TJ, Campbell JA. Measurement of wall shear stress. In: Goldstein RJ, editor. Fluid mechanics measurements. Washington, DC: Hemisphere, 1983.