Traced reference:
Code c (008/09) indicates that the 100-151 field contains an unestablished heading that is not authorized for use as the lead element in an access point in a bibliographic record. The heading is traced as a 4XX See From Tracing field in one or more other authority records. The reference record contains a Complex See Reference (260 or 664 ) field to guide the user to established heading(s).
Example:
008/09 c
100 1#$aReger, Max,$d1873-1916.$tDies irae
664 ##$aFor this movement included in the composer's unfinished Requiem search under$bReger, Max, 1873-1916.$tRequiem (Mass)
008/09 a [established heading record]
100 1#$aReger, Max,$d1873-1916.$tRequiem (Mass)
400 1#$wnnnb$aReger, Max,$d1873-1916.$tDies irae