4th AIAA/CEAS Aeroacoustics Conference (19th AIAA aeroacoustics conference) June 2-4, 1998/Toulouse, France : a collection of technical papers. v. 2 pp.747-757, 1998. Reston, VA. American Institute of Aeronautics and Astronautics
5th AIAA/CEAS Aeroacoustics Conference and Exhibit, Bellevue (Greater Seattle), Washington 10-12 May 1999 : a collection of technical papers. v. 2 pp.763-779, 1999. Reston, VA. American Institute of Aeronautics and Astronautics