- IEEE Aerospace and Electronic Systems Society (2)
- Institute of Electrical and Electronics Engineers (2)
- Institute of Electrical and Electronics Engineers. Washington Section (2)
- AAS/JRS Symposium (1)
- American Astronautical Society (1)
- EASCON (1)
- EASCON 87 (20th : 1987 : Washington, D.C.) (1)
- May, Gayle L. (Gayle Lynwood) (1)
- 日本ロケット協会 (1)