TY  - RPRT
TI  - Recent changes toward earlier springs---early signs of climate warming in western North America
AU  - D. Cayan
AU  - M. Dettinger
AU  - I. Stewart
AU  - N. Knowles
PY  - 2005
UR  - https://pubs.usgs.gov/publication/70174915
ID  - 70174915
ER  -