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<br /> <b>Notice</b>: Undefined variable: author in <b>/homepages/36/d237283249/htdocs/philosophos/product_info.php</b> on line <b>38</b><br /> <br /> <b>Notice</b>: Undefined variable: booktitle in <b>/homepages/36/d237283249/htdocs/philosophos/product_info.php</b> on line <b>38</b><br /> - philo-sophos