1. Aberrant Heterozygotes In Escherichia coli Publication: National Academy of Sciences (U.S.), April 1949 Subject(s): Recombination, GeneticEscherichia coli Archival Collection: The Joshua Lederberg Papers (Profiles in Science)
2. Sibling Recombinants in Zygote Pedigrees of Escherichia coli Publication: National Academy of Sciences (U.S.), December 1957 Subject(s): Recombination, GeneticCrossing Over, GeneticEscherichia coli Archival Collection: The Joshua Lederberg Papers (Profiles in Science)