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14.3.

- [. (14.3)]. [Potter, 1973] [Hockney, 1970; Hockney, Eastwood, 1981]. 60- , , , - - . , .

, . , , . , , .

, . . [Hockney, Eastwood, 1981]. [Ramo, Whinnery, Van Duzer, 1965], , . , . ( )

. 14.4.

. 14.5. , NGP. , (). -

. ; , .

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