PLENARY MEETING OF COSPAR(1978 <br/><br/>
"x-ray astronomy. Proceedings of the symposium of the Twenty-first plenary meeting of COSPAR, Innsbruck, Austria, May 29 - June 10, 1978" 

 - Oxford  Pergamon Press  1979 
 - xvi p. + 558 
 - "Advances in Space Exploration COSPAR Symposium Series, 3" .