Jasa-jasa substantial pada teori hukum internasional, hak asasi manusia dan perang; Penulis pertama tentang hukum internasional publik; Profesor Regius
^Julius J. Marke (1999). A Catalogue of the Law Collection at New York University: With Selected Annotations. New York, USA: Lawbook Exchange Ltd. hlm. 1372. ISBN978-1886363915.
^See the quotations from the following authors: Piergiovanni, Fuseli, Ulmen, Thomas JR, Kulsrud, Warren, Rio, Calamandrei.
^Pagden, Anthony (1991). Vitoria: Political Writings (Cambridge Texts in the History of Political Thought). UK: Cambridge University Press. hlm. xvi. ISBN0-521-36714-X.