Face and eye tracking algorithm based on digital image processing. - Claudio A. Perez; Alvaro Palma; Carlos A. Holzmann; Christian Pena (SMC, 2001)

ATAM-HW: Extending ATAM for Explicitly Incorporating Hardware-Related Trade-Off Decisions. - Christian Pena; María Cecilia Bastarrica; Daniel Perovich (SCCC, 2010)