Claude-Marie Dubufe (French, 1790-1864) Edouard-Louis ...
24 1819 ...
(Paul Emil Jacobs), 18031866. . ...
...
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10 , , 20–30 , . . , – . , , ( , « »), . - 5–10°, . , .
, , . 1 . , 30° 10–14 , 20° 15–20 . , , .