00919nam0-22003251i-450 99000011213040332120171212150427.0000011213FED01000011213(Aleph)000011213FED0120011111d1970----km-y0itay50------baitay-------001yyTechniques of information retrievalB. C. Vickery.LondonButterworths scientific publications1970VIII, 262 p.ill.22 cmReti informativeDocumentazioneAutomazione005.74Vickery,B. C.7279ITUNINARICAUNIMARCBK99000011213040332113 U 03 0927266FINBCII 1962390DINEDFINBCDINEDTechniques of information retrieval115033UNINAING01