Fractal dimension, only a fraction of the truth? - Fritz Albregtsen; Birgitte Nielsen; Yogesan Kanagasingam (ICPR (3), 1992)

Adaptive Gray Level Run Length Features from Class Distance Matrices. - Fritz Albregtsen; Birgitte Nielsen; Håvard E. Danielsen (ICPR, 2000)

Low dimensional adaptive texture feature vectors from class distance and class difference matrices. - Birgitte Nielsen; Fritz Albregtsen; Håvard E. Danielsen (IEEE Trans. Medical Imaging, 2004)