Fatal error: Uncaught Error: Undefined constant "TEXT_CITATIONPERSON" in C:\WWW\ilib.stz\sqlinclude\formats\book.php:228 Stack trace: #0 C:\WWW\ilib.stz\includes\class.sql.formats.loader.php(39): bookSqlFormat->show_format() #1 C:\WWW\ilib.stz\includes\functions.php(1950): SqlFormatsLoader->loadFormat() #2 C:\WWW\ilib.stz\details-sql-20.php(231): load_format() #3 C:\WWW\ilib.stz\details-sql.php(59): include('...') #4 C:\WWW\ilib.stz\details.php(67): include('...') #5 {main} thrown in C:\WWW\ilib.stz\sqlinclude\formats\book.php on line 228