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3. Gould , G. W. 1964 Effect of food preservatives on the growth of bacteria from spores 4th International Symposium on Food Microbiology, SIK, Goteburg, Sweden
4. Gould , G. W. Hitchins , A. D. 1965 Germination of spores with Strange and Dark's spore lytic enzyme Spores III . American Society for Microbiology, Ann Arbor, Michigan, U.S.A
5. Limitations of the initiation of germination of bacterial spores as a spore control procedure;Gould;J. appl. Bact.,1968