Cost and benefit analysis of quality requirements in competitive software product management: A case study on the QUPER model. - Richard Berntsson-Svensson; Yuri Sprockel; Björn Regnell; Sjaak Brinkkemper (IWSPM, 2010)

Setting quality targets for coming releases with QUPER: an industrial case study. - Richard Berntsson-Svensson; Yuri Sprockel; Björn Regnell; Sjaak Brinkkemper (Requir. Eng., 2012)