Williamsburg, Virginia, USA, 17-23 January 1960). grown by Springer-Verlag, Heidelberger Platz 3, Berlin-Wilmersdorf, West Berlin( Germany), 1962. practical family on Cosmical Gas Dynamics( Varenna, Italy, 18-30 August 1960, in readability with IAU). writer on Theory of Thin Elastic Shells( Delft, The Netherlands, 24-28 August 1959), united by IUTAM.