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  • × year_i:[1950 TO 1960}
  1. Dyson, G.M.: Advances in classification (1955) 6.81 
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  2. Esterquest, R.T.: ¬The MILC chemical abstracts project (1957) 6.81 
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  3. Grunwald, W.: Zur Sacherschließung im Bereich der Chemie (1959) 6.81 
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