1. BEADLE G. W. 1949 Genes and biological enigmas. Science in progress 6th Ser. Yale University Press New Haven.
2. Biochemical mutations in Neurospora;BONNER D.;Cold Spring Harbor Symposia Quant. Biol.,1946
3. Der Verwendungstoffwechsel der Salmonellen als mikrobiologisches Problem;BRAUN H.;Progressus Medicinae (Istanbul),1948
4. Induced biochemical mutations in B. 8ubtilis;BURKHOLDER P. R.;Am. J. Botany,1947
5. Isolation of biochemically deficient mutants of bacteria by penicillin;DAVI;J. Am. Chem. Soc.,1948