TY  - GEN
AU  - Ramaty,R
AU  - Balasubrahmanyan,V K
AU  - Ormes,J F
TI  - Cosmic ray sources: evidence for two acceleration mechanisms
SN  - 0036-8075
PY  - 2010///0702
N1  - Publication Type: Journal Article
UR  - https://doi.org/10.1126/science.180.4087.731
ER  -