Links
[1] http://www.sdi.re.kr/%23
[2] http://facebook.com/sharer.php?u=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40637&t=%5B%EB%85%BC%EB%AC%B8%5D%20Analysis%20of%20Characteristics%20and%20Reliability%20of%20Smart%20Card%20Data%20in%20Metropolitan%20Seoul
[3] http://twitter.com/intent/tweet?url=http%3A%2F%2Fwww.sdi.re.kr%2Fnode%2F40637&text=%5B%EB%85%BC%EB%AC%B8%5D%20Analysis%20of%20Characteristics%20and%20Reliability%20of%20Smart%20Card%20Data%20in%20Metropolitan%20Seoul
[4] http://www.sdi.re.kr/taxonomy/term/15682
[5] http://www.sdi.re.kr/si_download/40637/6601
[6] http://www.sdi.re.kr/taxonomy/term/17649
[7] http://www.sdi.re.kr/taxonomy/term/16921
[8] http://www.sdi.re.kr/taxonomy/term/17898
[9] http://www.sdi.re.kr/studies_on/15682