Global communications newsletter - Services and their customization for a DVB-S network (The reposit project). - Klaus-Dieter Hackbarth; Roberto Ortiz; Carlos Diaz (IEEE Commun. Mag., 2004)

WeBaSeRex: Next Generation Internet Network Design using Web based Remote Execution environments. - Alberto E. Garcia; Klaus-Dieter Hackbarth; Roberto Ortiz (IEEE SCC, 2005)

Applicability of Security Patterns. - Roberto Ortiz; Santiago Moral-García; Santiago Moral-Rubio; Belén Vela; Javier Garzás; Eduardo Fernández-Medina (OTM Conferences (1), 2010)

BUAP: An Unsupervised Approach to Automatic Keyphrase Extraction from Scientific Articles. - Roberto Ortiz; David Pinto 001; Mireya Tovar; Héctor Jiménez-Salazar (SemEval@ACL, 2010)

Analysis of Application of Security Patterns to Build Secure Systems. - Roberto Ortiz; Javier Garzás; Eduardo Fernández-Medina (CAiSE Workshops, 2011)

Towards a Pattern-based Security Methodology to Build Secure Information Systems. - Roberto Ortiz; Santiago Moral-Rubio; Javier Garzás; Eduardo Fernández-Medina (WOSIS, 2011)