Aircraft wake turbulence and its detection : proceedings of a symposium on aircraft wake turbulence held in Seattle, Washington, September 1-3, 1970 / sponsored jointly by the Flight Sciences Laboratory, Boeing Scientific Research Laboratories and the Air Force Office of Scientific Research ; edited by John H. Olsen, Arnold Goldburg and Milton Rogers. - Olsen, John H; Goldburg, Arnold; Rogers, Milton (Plenum, 1971)