Fatal error: Uncaught Error: Undefined constant "autor" in /homepages/7/d417307085/htdocs/profesordeinformatica/principio.inc:38
Stack trace:
#0 /homepages/7/d417307085/htdocs/profesordeinformatica/index.php(1): include()
#1 {main}
thrown in /homepages/7/d417307085/htdocs/profesordeinformatica/principio.inc on line 38