Development of a hybrid cost estimation model in an iterative manner. - Adam Trendowicz; Jens Heidrich; Jürgen Münch; Yasushi Ishigai; Kenji Yokoyama; Nahomi Kikuchi (ICSE, 2006)

An Integrated Approach for Identifying Relevant Factors Influencing Software Development Productivity. - Adam Trendowicz; Michael Ochs; Axel Wickenkamp; Jürgen Münch; Yasushi Ishigai; Takashi Kawaguchi (CEE-SET, 2007)

Lessons Learned and Results from Applying Data-Driven Cost Estimation to Industrial Data Sets. - Jens Heidrich; Adam Trendowicz; Jürgen Münch; Yasushi Ishigai; Kenji Yokoyama; Nahomi Kikuchi; Takashi Kawaguchi (QUATIC, 2007)

The Use of Simulation Techniques for Hybrid Software Cost Estimation and Risk Analysis. - Michael Kläs; Adam Trendowicz; Axel Wickenkamp; Jürgen Münch; Nahomi Kikuchi; Yasushi Ishigai (Adv. Comput., 2008)

Integrating Human Judgment and Data Analysis to Identify Factors Influencing Software Development Productivity. - Adam Trendowicz; Michael Ochs; Axel Wickenkamp; Jürgen Münch; Yasushi Ishigai; Takashi Kawaguchi (e Informatica Softw. Eng. J., 2008)

Handling Estimation Uncertainty with Bootstrapping: Empirical Evaluation in the Context of Hybrid Prediction Methods. - Michael Kläs; Adam Trendowicz; Yasushi Ishigai; Haruka Nakao (ESEM, 2011)