TY  - RPRT
TI  - The Mauna Loa carbon dioxide record: lessons for long-term Earth observations
AU  - Eric T. Sundquist
AU  - Ralph F. Keeling
PY  - 2009
DO  - 10.1029/2009gm000913
UR  - https://pubs.usgs.gov/publication/70046069
ID  - 70046069
ER  -