SINUP: Using GIS to Support e-Democracy. - Alexandre Valle de Carvalho; Artur Rocha; Marco Amaro Oliveira (EGOV, 2003)

Public Discussion of Oporto's Municipal Master Plan: An e-Democracy Service Supported by a Geographical Information System. - Marco Amaro Oliveira; Alexandre Valle de Carvalho; Luís Bártolo (EGOV, 2004)

A Spatio-temporal Database System Based on TimeDB and Oracle Spatial. - Alexandre Valle de Carvalho; Cristina Ribeiro 001; A. Augusto de Sousa (CONFENIS, 2006)

A temporal focus + context visualization model for handling valid-time spatial information. - Alexandre Valle de Carvalho; A. Augusto de Sousa; Cristina Ribeiro 001; Emília Costa (Inf. Vis., 2008)

Representation and management of spatiotemporal data in object-relational databases. - Luís Matos; José Manuel Moreira; Alexandre Valle de Carvalho (SAC, 2012)

Single window for collaborative multimodal logistics services an optimized and integrated door-to-door services offer. - Marco Amaro Oliveira; Rui Sanches Barros; Alexandre Valle de Carvalho; Paulo Rocha Melo (ICE/ITMC, 2017)

The 4-corner model as a synchromodal and digital twin enabler in the transportation sector. - Alexandre Valle de Carvalho; Paulo Rocha Melo; Marco Amaro Oliveira; Rui Sanches Barros (ICE/ITMC, 2020)

Spatiotemporal Phenomena Summarization through Static Visual Narratives. - Daniel Marques; Alexandre Valle de Carvalho; Rui Rodrigues 001; Edgar Carneiro (IV, 2020)

Computer Graphics teaching challenges: Guidelines for balancing depth, complexity and mentoring in a confinement context. - Rui Rodrigues 001; Teresa Matos 001; Alexandre Valle de Carvalho; Jorge G. Barbosa; Rodrigo Assaf; Rui Nóbrega; António Coelho 001; A. Augusto de Sousa (Graph. Vis. Comput., 2021)

AI-powered Contextual 3D Environment Generation: A Systematic Review. - Miguel Silva; Alexandre Valle de Carvalho (CoRR, 2025)