Ed. by R. R. Dexter and J. Singer.Inernational Council of the Aeronautical Sciences ( 9th : 1974 : Haifa )：ICAS proceedings of the 9th Congress.Weizmann Science Pr. of Islael,1974.
Ed. by R. R. Dexter and J. Singer.International Council of the Aeronautical Sciences ( 9th : 1974 : Haifa )：ICAS proceedings of the 9th Congress.Weizmann Science Pr. of Islael,1974.
