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1
by Habermann, Katharina
Published 2016
Universitätsverlag Göttingen
“...Erhard Weigel (1625-1699) was a German mathematician, astronomer, educator, philosopher...”
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2
by Colzi, Laura
Published 2021
Firenze University Press
“... astronomical observations devoted to the study of hydrogen and nitrogen fractionation (D/H and 14N/15N ratios...”