TY - RPRT TI - Exploratory electromagnetic thruster research, phase 2 Final report AU - Ducati, A. C. AU - Jahn, R. G. AU - Muehlberger, E. AU - Treat, R. P. PY - 1969 UR - https://ntrs.nasa.gov/citations/19690030026 ID - 19690030026 ER -