1. Decision Support Systems: Current Practices and Continuing Challenges;Alter,1980
2. A general, yet useful theory of information systems;Alter;Communications of the AIS,1999
3. Are the fundamental concepts of information systems mostly about work systems?;Alter;Communications of the AIS,2001
4. Which life cycle—work system, information system, or software?;Alter;Communications of the AIS,2001
5. Information Systems: Foundation of E-Business;Alter,2002