TY  - RPRT
TI  - Breakthrough Propulsion Study: Assessing Interstellar Flight Challenges and Prospects
AU  - Marc G. Millis
AU  - Greason, Jeff
AU  - Stevenson, Rhonda
PY  - 2018
UR  - https://ntrs.nasa.gov/citations/20180006480
ID  - 20180006480
ER  -