<p>GERTWOL was used in a study described in the following article:</p> <p>Rostek, L. and M. Alexa. \"Marking up in TATOE and exporting to SGML.\" <em>Computers and the Humanities</em> 31.4 (1997): 311-326. <a href=\"http://link.springer.com/article/10.1023/A%3A1001070608920\" target=\"_blank\">Web</a>.</p>