| 2007 |
| 9 | EE | Carlos J. Costa,
José Silva,
Manuela Aparicio:
Evaluating web usability using small display devices.
SIGDOC 2007: 263-268 |
| 2006 |
| 8 | EE | Carlos J. Costa,
Manuela Aparicio:
Searching documents on the intranet using PDA.
SIGDOC 2006: 23-28 |
| 2005 |
| 7 | | Carlos J. Costa,
Manuela Aparicio:
Managing the Information System Life Cycle in Construction and Manufacturing.
IEC (Prague) 2005: 143-147 |
| 6 | EE | Carlos J. Costa,
Manuela Aparicio:
Visualization of balanced scorecard on PDAs.
SIGDOC 2005: 103-107 |
| 2004 |
| 5 | | Carlos J. Costa,
J. Paulo Costa,
Manuela Aparicio:
P-Manager: Actions vs. Messages.
ICEIS (3) 2004: 643-646 |
| 4 | | Carlos J. Costa,
Pedro Costa,
Manuela Aparicio:
Principles for Creating Web Sites: A Design Perspective.
ICEIS (4) 2004: 484-488 |
| 3 | | Carlos J. Costa,
Manuela Aparicio:
Business models for hotspot an exploratory study.
ICWI 2004: 915-918 |
| 2002 |
| 2 | | Carlos J. Costa,
Eugenia Luiso,
Manuela Aparicio:
Using the Web to Communicating with Stakeholders - Exploratory Study in the NGO.
ICWI 2002: 537-540 |
| 2001 |
| 1 | EE | Manuela Aparicio,
Carlos J. Costa:
A New Digital Report for Disseminating Meeting Outcomes.
AICCSA 2001: 554-556 |