Spacecraft Engineering, Canadian Space Agency, Saint-Hubert, Que. J3Y 8Y9, Canada Department of Mechanical Engineering, Montreal Polytechnic School, Montreal, Que., Canada Dept. of Mat. Sci. and Engineering, Massachusetts Inst. of Technology, Cambridge, MA, United States Alcan International Limited, Kingston R. and D. Centre, Kingston, Ont., Canada Massachusetts Inst. of Technology

00222461 (ISSN)