References
1 Joaquim de Vasconcellos "Albert Durer e a sua influencia na peninsula", (Archeog. Artistica, IV Renascenca Portuguesa ist ed. & 2nd ed Coimbra 1929 (.Goesan. O retrato de Albrecht Durer pp 164-170 and Lusitania, vol I (Lisbon 1924) pp: 313-319
2 H.Tietze and E.Tietze-Conrat Kritisches Verzeichnis der Werke Albrech Durer, Vol II "Der reife Durer." (Basel-Leipzig 1938) A425
3 Friedrich Winkler, Die Zeichnungen Albrecht Durers, (Berlin 1939) IV, no 917,
4 Eduard Flechsig, Albert Durer, sein Leben und seine kunsterisches Entwicklung, volII (Berlin 1931) pp. 240-242
5. J.Hillam, I.Tyers: Reliability and repeatability in dendrochronological analysis tests using the Fletcher archive of panel-painting data.
Archaeometry August 1995
6. Erwin Panofsky, Albrecht Durer, vol II (Princeton 1948) no 1081
7. Walter L. Strauss, The complete drawings of Albrecht Dürer, 6 Bände, (Suppl. 1+2, 1977), New York 1974
8. Hans Tietze, Erica Tietze-Conrat, Otto Benesch, Karl Garzarolli-Thurnlackh, Beschreibender Katalog der Handzeichnungen in der Graphischen Sammlung Albertina IV/V:
9. Joseph Heller Das Leben und die Werke Albrecht Durers Vol II, 2 Bamberg, 1827, 904 no.259
10. Matthias Mende, Duerer's so-called Portrait of Damiao de Gois : toward a reconstruction of a lost painting of 1521 in Tribute to Lotte Brand Philip : art historian and detectiv,e, Abaris Books NY 1985
11. The operation of these devices is explained in Dürer in America: his graphic work, edited by Charles W. Talbot (Washington, DC 1971), pp.353–354, no. 215
12. Kan. Prof. Dr. M.A.Nauwelaerts: Erasmus en de Kunst, in: Revue Belge d’Archéologie et d’Histoire d’Art, Brussels, XLII, 1973 (1975)
13. Elizabeth Feist Hirsch "The Life and thought of a Portuguese humanist 1502-1574" 1967. Footnote 12 Page 25
14. Albrecht Durer Underweysung der Messung, 1525;
15. Manfred Sellink "Philips Galle 1537-1612 Gouda 1997
16.Hirsch, Elisabeth Feist. “DAMIAO DE GOES' CONTACTS AMONG DIPLOMATS.” <i>Bibliothèque D'Humanisme Et Renaissance</i>, vol. 23, no. 2, 1961, pp. 233–251.
17. Robertson, Olivia. “The Consequences of an Unfinished Christ.” The Coalition of Master’s Scholars on Material Culture, May 21, 2021.