TY  - RPRT
TI  - Round-Trip Missions to Low-Delta-V Asteroids and Implications for Material Retrieval
AU  - David F Bender
AU  - R Scott Dunbar
AU  - David J Ross
PY  - 1979
UR  - https://ntrs.nasa.gov/citations/19790024062
ID  - 19790024062
ER  -