TY  - RPRT
TI  - Round-Trip Solar Electric Propulsion Missions for Mars Sample Return
AU  - Bailey, Zachary J.
AU  - Sturm, Erick J.
AU  - Kowalkowski, Theresa D.
AU  - Lock, Robert E.
AU  - Woolley, Ryan C.
AU  - Nicholas, Austin K.
PY  - 2014
UR  - https://ntrs.nasa.gov/citations/20160008159
ID  - 20160008159
ER  -