TY  - RPRT
TI  - Proposal for a lunar tunnel-boring machine
AU  - Allen, Christopher S.
AU  - Cooper, David W.
AU  - Davila, David, Jr.
AU  - Mahendra, Christopher S.
AU  - Tagaras, Michael A.
PY  - 1988
UR  - https://ntrs.nasa.gov/citations/19890008382
ID  - 19890008382
ER  -