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PHYSICAL REVIEW E, vol. 57, no. 3, page. 3292 - 3297, 1998-03
JOURNAL OF THE KOREAN PHYSICAL SOCIETY, vol. 32, no. 1, page. 1 - 7, 1998-01
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PHYSICAL REVIEW E, vol. 56, no. 5, page. R4955 - R4958, 1997-11
INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, vol. 7, no. 5, page. 1025 - 1033, 1997-05
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PHYSICA D, vol. 89, no. 3-4, page. 315 - 328, 1996-01-01
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PHYSICAL REVIEW E, vol. 49, no. 4, page. 2900 - 2911, 1994-04
PHYSICAL REVIEW B, vol. 49, no. 1, page. 459 - 464, 1994-01-01
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