1. The genes for ribosomal RNA during oogenesis;Gall;Genetics,1969
2. DNA replication and gene amplification in heterochromatin;Lima-de-Faria,1969
3. The ribosomal RNA cistrons;Birnstiel;Progr. Nucl. Acid. Res.,1971
4. Occurrence and developmental significance of gene amplification;Tobler,1975
5. Nucleolar DNA in oocytes of Salmo irideus (Gibbons);Vlad;Cell Tiss. Res.,1976