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2. 〈www.nobelprize.org/nobel_prizes/laureates/1986/press.html〉 Accessed 17.10.15.
3. History of Botanical Science: An Account of the Development of Botany From Ancient Times to the Present Day;Morton,1982
4. Electron microscopy of purified Lansing virus;Loring;Proc Soc Exp Biol Med,1946
5. Electron microscopy of Bacterium tularense;Eigelsbach;J Bacteriol,1946