On the Issue of Valid Time(s) in Temporal Databases. - Stavros Kokkotos; Efstathios V. Ioannidis; Themis Panayiotopoulos; Constantine D. Spyropoulos (SIGMOD Rec., 1995)

Evaluation of global image thresholding for change detection. - Paul L. Rosin; Efstathios V. Ioannidis (Pattern Recognit. Lett., 2003)