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.