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Working provisional copy - Pls do not circulate<br />

ASTRONOMICAL PUBLISHING 19<br />

Figure 7. Growth rate of R&D expenditures for selected countries (from the NSF’s<br />

Science and Engineering Indicators 2010).<br />

Figure 8. The number of papers per year posted to astroph. Top curve (blue) are astronomy<br />

and astrophysics papers, bottom curve (red) are cross referenced papers, usually<br />

from physics.

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