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Correction
Publication year - 1957
Publication title -
journal ‐ american water works association
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1957.tb16808.x
Subject(s) - citation , computer science , library science , george (robot) , information retrieval , world wide web , artificial intelligence