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2.8. , ,

. . (University of Edinburgh)

2.8.1.

, , . , , , ( ) , - - [2].

1900 . , . [ (1)] (1) , . [3], (2). . 1929 . , [ (2)] , , .

1937 . : 1) [4],

; 2) [5], ; 3) , [6]. , . , () [7], () () [8], , .

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