Characteristics of Unmaintainable Source Code in Software Development by Multiple Organizations. - Ryo Ishizuka; Naohiko Tsuda; Hironori Washizaki; Yoshiaki Fukazawa; Shunsuke Sugimura; Yuichiro Yasuda (BCD, 2018)

Machine Learning to Evaluate Evolvability Defects: Code Metrics Thresholds for a Given Context. - Naohiko Tsuda; Hironori Washizaki; Yoshiaki Fukazawa; Yuichiro Yasuda; Shunsuke Sugimura (QRS, 2018)

Effects of Software Modifications and Development After an Organizational Change on Software Metrics Value. - Ryo Ishizuka; Naohiko Tsuda; Hironori Washizaki; Yoshiaki Fukazawa; Shunsuke Sugimura; Yuichiro Yasuda (IEICE Trans. Inf. Syst., 2019)