by 김은주(Eun-Ju Kim), 김지원(Ji-Won Kim), 박병래(Byung-Rae Park)
Published in 한국콘텐츠학회 논문지, 11(11) (2011)

by 배성진(Sung-Jin Bae), 임청환(Cheong-Hwan Lim), 박병래(Byung-Rae Park), 신운재(Woon-Jae Shin), 김정삼(Jung-Sam Kim)
Published in 한국콘텐츠학회 논문지, 10(3) (2010)

by 심춘보(Choon-Bo Shim), 신용원(Yong-Won Shin), 박병래(Byung-Rae Park)
Published in 韓國컴퓨터情報學會論文誌 (2005)