L'auteur tient à la disposition des personnes intéressées une version originale des textes commentées.
Business investment in the United States, Raymond J Waldmann, The Bureau of National Affairs, Inc,p.9
"Treaty shopping and the 1981 US treasury model income tax treaty ", Foreign investment in the United states 1982, Stuart R. Singer and Chairman,Practising law institute, p.249 et s.
