Search (2 results, page 1 of 1)
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author_ss:"Lancaster, F.W."
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theme_ss:"Retrievalstudien"
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year_i:[1960 TO 1970}
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language_ss:"e"
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type_ss:"a"
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Lancaster, F.W.: On the need for role indicators in postcoordinate retrieval systems (1968)
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Lancaster, F.W.: MEDLARS : report on the evaluation of its operating effiency (1961)
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