Agents Technology Extended with Mobile Devices. - Fábio Calhau; Lino Pereira; Paulo Roberto Costa; Luís Miguel Botelho (MATA, 2004)

Context-aware Secure Service Composition Planning and Execution on E-Health Environments. - António Lopes 001; Paulo Roberto Costa; Federico Bergenti; Matthias Klusch; Bastian Blankenburg; Thorsten Möller; Heiko Schuldt (ECEH, 2006)

Learning by Observation in Software Agents. - Paulo Roberto Costa; Luís Miguel Botelho (ICAART (2), 2012)

Learning by Observation of Agent Software Images. - Paulo Roberto Costa; Luís Miguel Botelho (J. Artif. Intell. Res., 2013)

Learning control knowledge by observation in software agents - Paulo Roberto Costa (2013)