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3. Synthesis of indicator strains and density of ribonucleic acid-containing coliphages in sewage;Dhillon;Appl. Microbiol.,1974
4. The effects of ultra-violet irradiation on various RNA phages;Furuse;Virus (in Japanese),1967
5. Isolation and grouping of RNA phages. IV. A survey in Japan;Furuse;J. Keio Med. Soc. (in Japanese),1973