@techreport{TR-IC-96-06,
  number = {IC-96-06},
  author = {de Oliveira, Juliano L. and Medeiros, Claudia M. B.},
  title = {User Interface Issues in Geographic Information Systems},
  month = {July},
  year = {1996}, 
  institution = {Institute of Computing, University of Campinas},
  note = {In English, 48 pages.
    \par\selectlanguage{english}\textbf{Abstract}
      Recently, much research effort has been employed in the area of
      Geographic Information Systems due to the vast potential for
      applications of this technology. Simultaneously, user interface
      subsystems of software products have received attention since
      the interface has marked influence in software acceptance.  This
      paper presents an overview of research done in the intersection
      of these areas. The main approaches and the current problems of
      user interfaces for Geographical Information Systems are
      discussed and analyzed. This study concludes with open problems
      and new research directions for future work in this area.
  }
}