TY  - RPRT
TI  - Building a Shared Definitional Model of Long Duration Human Spaceflight
AU  - Arias, Diana
AU  - Orr, Martin
AU  - Whitmire, Alexandra
AU  - Leveton, Lauren
AU  - Sandoval, Luis
PY  - 2012
UR  - https://ntrs.nasa.gov/citations/20130000756
ID  - 20130000756
ER  -