A table of authorities lists the references in a legal document, along with the numbers of the pages the references appear on. To create a table of authorities a special TA (Table of Authorities Entry) field (TaField) should be inserted in the document.
When a document containing a hyperlink before bookmark and it is exported to PDF or UpdateField(s) method is called an exception is thrown: "System.InvalidCastException: 'Unable to cast object of type 'Telerik.Windows.Documents.Fixed.Model.Editing.Layout.HyperlinkEndLayoutElement' to type 'Telerik.Windows.Documents.Fixed.Model.Editing.Layout.TextFragmentLayoutElement'.'"