ArticleIssue Date2005CitationIEICE TRANSACTIONS ON INFORMATION AND SYSTEMS, v.E88D, no.9, pp.2177 - 2182PublisherIEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
ArticleIssue Date2005CitationJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, v.44, no.5 B, pp.3499 - 3502PublisherInstitute of Pure and Applied Physics