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INDUCTION OF LAMBDA PROPHAGE AND OF MUTATIONS TO STREPTOMYCIN RESISTANCE IN SEPARATE SMALL FRACTIONS OF A LYSOGENIC DERIVATIVE OF ESCHERICHIA COLI B/R BY VERY LOW DOSES OF ULTRAVIOLET LIGHT.WITKIN EM; WERMUNDSEN IE.1977; MOLEC. GEN. GENET.; GERM.; DA. 1977; VOL. 156; NO 1; PP. 35-39; BIBL. 14 REF.Article

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