"El caso Horman y la Armada". BioBioChile - La Red de Prensa Más Grande de Chile. September 17, 2014. Archived from the original on December 17, 2021. Retrieved December 17, 2021.
Lutz, Maria Olga (December 1, 1982). "'Desaparecido' y el general Lutz". El País. Archived from the original on December 17, 2021. Retrieved December 17, 2021 – via elpais.com.
Ad Hoc Interagency Working Group on Chile (1970-12-04). "Memorandum for Mr. Henry Kissinger". United States Department of State. Archived from the original on 2011-01-13. Retrieved 2010-11-07. {{cite journal}}: Cite journal requires |journal= (help)
Ad Hoc Interagency Working Group on Chile (1970-12-04). "Memorandum for Mr. Henry Kissinger". United States Department of State. Archived from the original on 2011-01-13. Retrieved 2010-11-07. {{cite journal}}: Cite journal requires |journal= (help)
"El caso Horman y la Armada". BioBioChile - La Red de Prensa Más Grande de Chile. September 17, 2014. Archived from the original on December 17, 2021. Retrieved December 17, 2021.
Lutz, Maria Olga (December 1, 1982). "'Desaparecido' y el general Lutz". El País. Archived from the original on December 17, 2021. Retrieved December 17, 2021 – via elpais.com.