Ahsan, S. N., M. T. Afzal, S. Zaman, C. Gütel, and F. Wotawa. “MINING EFFORT DATA FROM THE OSS REPOSITORY OF DEVELOPER’S BUG FIX ACTIVITY”. Journal of IT in Asia, Vol. 3, no. 1, Apr. 2016, pp. 107-28, doi:10.33736/jita.38.2010.