Macleod, A M Genetic recombination of homologous plasmids catalysed by cell-free extracts of topo-isomerase mutant strains of Saccharomyces cerevisiae. [electronic resource] - World journal of microbiology & biotechnology Sep 1993 - 583-6 p. digital Publication Type: Journal Article ISSN: 0959-3993 Standard No.: 10.1007/BF00386299 doi