This document describes the integration of Grif, an SGML editor developed at Inria and marketed by Grif.Sa, with Sigma, a text retrieval tool developed by CSIRO. The integration provides Grif with flexible search and dynamic hypertext linking functions, and enhances the Sigma system to support search and display of SGML documents using a structured editor. The integration also clarifies the requirements for more generic facilities for document search, linking, and indexing for the respective systems as modular components of an open systems environment.