The Nexus information hub for exploring social-informational context. - Tim Mansfield; Markus Rittenbruch; Luke Cole; José Siqueira (ADCS, 2002)

Sharing Social Recommendations: Towards a Social Portal. - Tim Mansfield; Nigel Ward; Markus Rittenbruch; Gregor McEwan; José Siqueira; Anthony Wilkinson (DCW, 2002)

Nonstandard proof methods in toposes. - José Siqueira (Ann. Pure Appl. Log., 2024)