Cardon, Dominique (2003), pp. 473-475
Bruquetas, Rocio (2007), pp. 159-162
Eastaugh, Nicholas (2004), pp. 118-119
Calvo, Ana (2003), p. 51
Perego, François (2005), pp. 157-161
Roquero, Ana; Córdoba, Carmen (1981), pp. 39-41
Matteini, Mauro; Moles, Arcangelo (2001), p. 81
Pedrola, Antoni (1998), p. 71