1. Selberg B.P., Nicholls J.A., Drag coefficient of small spherical particles, AIAA, 6, 401, 1968
2. Buckley F.T.Jr., An experimental investigation of the drag coefficient of particles accelerating within particulate clouds at transonic slip flow conditions by a light extinction technique, PhD Dissertation, University of Maryland, USA, 1968
3. Rudinger G., Effective drag coefficient for gas-particle flow in shock tubes, ASME J, Basic Eng. D., 92, 165, 1970
4. Karanfilian S.K., Kotas T.J., Drag on a sphere in unsteady motion in a liquid at rest, J. Fluid Mech., 87, 85, 1978
5. Quta E., Tajima K., Suzuki S., Cross sectional concentration of particles during shock process propagating through a gas-particles mixture in a shock tube, In: Proc. 13th ISSW, Buffalo, USA, 1981