TY - RPRT TI - A Preliminary Model for Spacecraft Propulsion Performance Analysis Based on Nuclear Gain and Subsystem Mass-Power Balances AU - Chakrabarti, S. AU - Schmidt, G. R. AU - Thio, Y. C. AU - Hurst, C. M. PY - 1999 UR - https://ntrs.nasa.gov/citations/19990080929 ID - 19990080929 ER -