TY - RPRT TI - A launch window study for GEOTAIL's double lunar swingby trajectory AU - Dunham, David W. AU - Jen, Shao-Chiang AU - Uesugi, Kuniori AU - Kawaguchi, Jun'ichiro AU - Farquhar, Robert W. PY - 1990 UR - https://ntrs.nasa.gov/citations/19910029322 ID - 19910029322 ER -