ArticleIssue Date2007CitationIEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, v.E90A, no.7, pp.1491 - 1495PublisherIEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG
ArticleIssue Date2007CitationIEICE TRANSACTIONS ON FUNDAMENTALS OF ELECTRONICS COMMUNICATIONS AND COMPUTER SCIENCES, v.E90A, no.12, pp.2971 - 2974PublisherIEICE-INST ELECTRONICS INFORMATION COMMUNICATIONS ENG