R. Bernal Correa, J. Montes Monsalve, A. Pulzara Mora, M. López López, A. Cruz Orea, and J. A. Cardona, “Polycristalline growth of zinc blende gallium arsenide layers by R.F. magnetron sputtering”, Superficies y Vacio, vol. 27, no. 3, pp. 102-106, Sep. 2014.