Alfaro Giner, Carmen (1984), p. 202
Asensio Fuentes, Antonio (1982), p. 29
Calvo, Ana (1997), p. 51
Roquero, Ana; Córdoba, Carmen (1981), pp. 38-39
Eastaugh, Nicholas (2004), pp. 330-331
Perego, François (2005), pp. 161-162
Castroviejo, Santiago (1982), p. 100
Cardon, Dominique (2003), pp. 60-64