International symposium on rarefied gas dynamics.International symposium on rarefied gas dynamics (9th : 1974 : Gottingon)：Rardfied gas dynamics．v. 1.s. n.,1974.
International symposium on rarefied gas dynamics.International symposium on rarefied gas dynamics (9th : 1974 : Gottingon)：Rardfied gas dynamics．v. 2.s. n.,1974.
