Agrega - Spanish Education Community Federation Of Repositories Of Learning Objects. - Antonio Sarasa-Cabezuelo; Jose Manuel Canabal Barreiro; Juan Carlos Sacristán Heras (e-Learning, 2008)

Agrega: A Distributed Repository Network of Standardised Learning Objects. - Antonio Sarasa-Cabezuelo; Jose Manuel Canabal Barreiro; Juan Carlos Sacristán Heras (IWANN (2), 2009)

Using IMS VDEX in Agrega. - Antonio Sarasa-Cabezuelo; Jose Manuel Canabal Barreiro; Juan Carlos Sacristán Heras; Raquel Jimenez (Int. J. Emerg. Technol. Learn., 2009)