Luís Carriço, Nelson Baloian, Benjamin Fonseca, ed. Proceedings of the 15th Collaboration Researchers' International Workshop on Groupware (CRIWG), Sep 2009. Peso da Regua, Portugal. Springer-Verlag, Berlin/Heidelberg, Germany. ISBN 978-3-642-04215-7. Lecture Notes in Computer Science vol. 5784.
Gustavo Zurita, Nelson Baloian. Geocollaboration in LEarning Scenarios. In Interface and Interaction Design for Learning and Simulation Environments, pp. 279-288, 2009. Logos Verlag, Berlin, Germany. ISBN 978-3-8325-2361-9.
Nelson Baloian, Gustavo Zurita. Seamless Integration of formal and informal learning. In Interface and Interaction Design for Learning and Simulation Environments, pp. 266-278, 2009. Logos Verlag, Berlin, Germany. ISBN 978-3-8325-2361-9.
Olivier Motelet, Nelson Baloian, José A. Pino. Taking Advantage of Metadata Semantics: The Case of Learning-Object-based Lesson Graphs. Knowledge and Information Systems (KAIS) 20(3):323-348, Sep 2009. Springer-Verlag, Berlin/Heidelberg, Germany. ISSN 0219-1377.
Nelson Baloian, Gustavo Zurita. MC-Supporter: Flexible Mobile Computing Supporting Learning though Social Interactions. Journal of Universal Computer Science 15(9):1833-1851, Sep 2009. Graz University of Technology, Graz, Austria. ISSN 0948-695X.
Nelson Baloian, Wolfram Luther. Cooperative Visualization of Cryptographic Protocols Using Concept Keyboards. International Journal of Engeneering Education (IJEE) 25(4):745-754, Aug 2009. Tempus Publications, Rossmore, Ireland. ISSN 0949-149X.
Gustavo Zurita, Nelson Baloian, Felipe Baytelman, Mobile Collaborative Knowledge Management System, Proc. 12th Int. Conf. on Comp. Supported Coop. Work in Design, IEEE Press pp. 588-593, 2008.
Gustavo Zurita, Nelson Baloian, Felipe Baytelman, Using Mobile Devices to Foster Social Interactions in the Classroom, Proc. 2008, 12th Int. Conf. on Comp. Supported Coop. Work in Design, IEEE Press pp. 1041-1046, 2008.
Henning Breuer, Gustavo Zurita, Nelson Baloian, Mitsuji Matsumoto, Mobile Learning with Patterns, Proc. Of the 8th IEEE Int. Conf. on Advanced Learning Tech. (ICALT) Santander, Spain, July 1-5, 2008, pp. 626-630, IEEE Computer & Society Press.