1. Characterization of a mammalian mutant with a camptothecin-resistant DNA topoisomerase I;Andoh,1987
2. Ribosomal RNA genes in Saccharomyces cerevisiae;Bell;J. Biol. Chem.,1977
3. Expression of yeast DNA topoisomerase I can complement a conditional-lethal DNA topoisomerase I mutation in Escherichia coli;Bjornsti,1987
4. Replication and meiotic transmission of yeast ribosomal RNA genes;Brewer,1980
5. Transcription-dependent DNA supercoiling in yeast DNA topoisomerase mutants;Brill;Cell,1988