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plp:crosschecks:x028a [2011/06/16 08:30]
tmqinc
plp:crosschecks:x028a [2013/04/27 09:09] (current)
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 +====== X028A Crosscheck ======
  
 +Check Publisher number (028$a): This crosscheck extracts and checks all occurrences of [[http://www.loc.gov/marc/bibliographic/bd028.html|028]]$a; if any two numbers match, the others are discarded and the crosscheck passes; this crosscheck will be run only on Audio/Visual items (record types c,d,g,i,j,k,o,r)
 +
 +Normalization: shift to uppercase, replace dashes with blanks, close-up double blanks, ignore any data in parens or brackets. 
 +
 +A missing 028$a will not fail the match
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