TY - RPRT TI - Implicit Formulations of Bounded-Impulse Trajectory Models for Preliminary Interplanetary Low-Thrust Analysis AU - Falck, Robert D AU - McCarty, Steven L. AU - Pekosh, Jeffrey AU - Ponnapalli, Kaushik PY - 2020 UR - https://ntrs.nasa.gov/citations/20200000233 ID - 20200000233 ER -