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" .."
6
1. (1/f)
., .., ..
, 1995 ., 108, . 3, . 894

2.
.., ..
, 1993 ., 104, . 6, . 4059

3.
4. .
5.
.., .., ..
, 1999 ., 116, . 4, . 1462
PDF (710.1K)

6.
.., .., ..
, 1998 ., 113, . 4, . 1484
PDF (249K)