| http://www.w3.org/ns/prov#value | - Priester: I did do some mathematics, but in astronomy, to get any information in astronomy basically was reading this kind of sort of popular books of a high level, like Sir James Jeans' books, and then, I had a German journal which is, well, it is a journal which is in the level above SKY AND TELESCOPE, because it had lots of equations in it and so on, but it was still considered to be a popular j
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