Network for the Abolition of the Death Penalty and Cruel Punishment
International Amnesty.
Gacto, E. Notebooks of History 16 (1985)
Elias Neuman. National Institute of Criminal Sciences (2004).
José Hurtado Pozo. Yearbook of Criminal Law (2007).
Elías Neuman. Editorial University (2004).
Marc Ancel. United Nations (1968).
N. Georges. ECPM (2020).