Experimental studies of SDMA schemes for wireless communications. - Hsin-Piao Lin; Shiann Shiun Jeng; I. Parra; Guanghan Xu; Wolfhard J. Vogel; Geoffrey W. Torrence (ICASSP, 1995)

A least squares projective constant modulus approach. - I. Parra; Guanghan Xu; Hui Liu (PIMRC, 1995)

Electric Utility Enterprise Architecture to Support the Smart Grid - Enterprise Architecture for the Smart Grid. - I. Parra; A. Rodríguez; Gustavo Arroyo-Figueroa (ICINCO (2), 2014)