TY  - RPRT
TI  - Thinking about NASA's future.
AU  - Michael Barratt
AU  - Andrea Hanson
AU  - Jeffrey Plescia
PY  - 2006
DO  - 10.1126/science.311.5760.469a
UR  - https://pubmed.ncbi.nlm.nih.gov/16439645/
ID  - 16439645
ER  -