cs1 Errors: Bibcode

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Check |bibcode=

When Citation Style 1 and Citation Style 2 templates contain |bibcode=, a test is done to see if the bibcode identifier has the proper format. Bibcodes are expected to match these requirements:

length must be 19 characters ( = '')
characters in position(s): (except as specified otherwise, violations produce '' in the portion of the error message):
1–4 must be digits and must represent a year in the range of 1000 – next year ( = '')
5 must be a letter
6–8 must be a letter, ampersand, or dot (ampersand cannot directly precede a dot; &. ( = ''))
9 must be a letter or dot
10–18 must be a letter, digit, or dot
19 must be a letter or dot

To resolve this error, ensure that the |bibcode= value is correct.

Pages with this error are automatically placed in Category:CS1 errors: bibcode.

Notes