Werner, W.; Bauswein, E.; Fromm, C.: Static firing rates of premotor and primary motor cortical neurons associated with torque and joint position. Experimental Brain Research 86 (2), pp. 293 - 302 (1991)

Osborn, M.; Domagala, W.: Immunocytochemistry in diagnostic cytopathology. In: Comprehensive cytopathology, pp. 1011 - 1051 (Ed. Bibbo, M.). Saunders, Philadelphia, Pa. (1991)