Referencia documental:
SAA, Stadsarchief Amsterdam, NA 1967/325, Nots: J. F. Bruijningh. Contract (Statement, Power of attorney) of Gaspar Lopes Homem, Duarte Fernandes, Sebastiao Rodrigues de Leao, Pieter Beltgens, Du Molijn, Jacob Geurstz, Jan Jansen Backer