CHARACTERIZATION OF DEPRESSED MUTANT OF F-LIKE PLASMID PAP18-1 ENCODING TETRACYCLINE RESISTANCE IN ESCHERICHIA-COLI Article SHCHIPKOV V.P., BUYANOVA N.I., PEKHOV A.P. ANTIBIOTIKI I MEDITSINSKAYA BIOTEKHNOLOGIYA. IZD VO MEDITSINA. Vol. 31. 1986. P. 28-31