Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tests of Galactic Cosmic Ray Source Models   This report discusses the possibilities for observational tests of current
models and ideas regarding the origin of the Galactic Cosmic Rays using
facilities which are already available.

16
The categories of this paper are: stat
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
32
The categories of this paper are: atom-ph
33
The categories of this paper are: plasm-ph
4
The categories of this paper are: cond-mat