Alexander L. Tchijevsky: "exquisite poet-philosopher, " "creator of new sciences, "or "charlatan".
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AP
D001256:Astronomy / Q000266:history*; D002960:Civil Disorders / Q000266:history*; D049673:History, 20th Century; D011037:Poetry as Topic / Q000266:history*; D012426:Russia; D012993:Solar Energy