00437nam a22000977a 4500008004100000040005500041245015300096260004400249300001400293490003200307230724b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  aScientific and technical information, why, which, where and howc/ Advisory Group for Aerospace Research and Development Paris, France February 1971  aUS: bUS Department of Commerce, c1971  av, 6-12p.  aAGARD lecture series no. 44