(Duperron) ( ) (12 1877, .-  23 1934, ), , (1917), , , , , .

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(Keller) (4 1911, .  .  1982, -), , (1963).

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(Lesshaft) (ϸ ) (21 1837, .-  28 1909, , ), , , ; , (1865), (1868).

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(Focht) (6 1894, .-  1942, .), , .

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(Fulda) () () ( 1870, -  1946, ), .

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(Spiegel) (25 1889,   11 1938, ), , , .

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(Spiegel) (29 1897, .-  21 1941), , .

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