Visual conspicuity of objects in complex scenes. - Theo Boersema; Harm J. G. Zwaga (Human Vision and Electronic Imaging, 2000)

Shape perception in pictures: eye movements during local surface attitude probing. - Andrea J. van Doorn; Theo Boersema; Huib de Ridder; Kees Jorens; Arend Harteveld (Human Vision and Electronic Imaging, 2002)