1. The functional significance of nucleolar structures;Schwarzacher;Ann Genet,1991
2. AgNOR of human interphase cells in relation to acrocentric chromosomes;Lee;Cancer Genet Cytogenet,1999
3. Guidelines of AgNOR quantitation. Committee on AgNOR Quantitation within the European Society of Pathology;Aubele;Zentralbl Pathol,1994
4. Selective staining of nucleolus organizer regions (NORs);Howell,1982
5. AgNOR staining and quantification;Trerè;Micron,2000