Understanding mobile Q&A usage: an exploratory study. - Uichin Lee; Hyanghong Kang; Eunhee Yi; Mun Yi; Jussi Kantola (CHI, 2012)

Analyzing crowd workers in mobile pay-for-answer q&a. - Uichin Lee; Jihyoung Kim; Eunhee Yi; Juyup Sung; Mario Gerla (CHI, 2013)