1. J.P. Robert. Drag reduction: an industrial challenge. AGARD Report 786, 1992.
2. Special Course on Skin Friction Drag Reduction. AGARD Report 786, 1992.
3. E. Coustols. Control of turbulent flows for skin friction drag reduction. CISM Course on Control of Flow Instabilities and Unsteady Flows, 1995.
4. E. Coustols and A.M. Savill. Turbulent skin friction drag reduction by active and passive means. AGARD Report 786, 1992.
5. M.V. Morkovin. Critical evaluation of transition from laminar to turbulent shear layers with emphasis on hypersonically travelling bodies. Report AFFDL—TR-68149, Wright-Patterson Air Force Base, Ohio, 1968.