http://ubu.artmob.ca/sound/Avant_Marghen_Vol_2/Castillejo_Jose_Luis/Castillejo_Jose_Luis_The_Book_of_i/Castillejo_Jose_Luis_The_Book_of_i_02_A_Book_of_a_Book.mp3
http://ubu.artmob.ca/sound/Avant_Marghen_Vol_2/Castillejo_Jose_Luis/Castillejo_Jose_Luis_The_Book_of_i/Castillejo_Jose_Luis_The_Book_of_i_03_Book_of_18_Letters_1st_fragment.mp3
http://ubu.artmob.ca/sound/Avant_Marghen_Vol_2/Castillejo_Jose_Luis/Castillejo_Jose_Luis_The_Book_of_i/Castillejo_Jose_Luis_The_Book_of_i_04_Book_of_18_Letters_2nd_fragment.mp3