Referencia documental:
SAA, Stadsarchief Amsterdam, NA 196/325- 326v, Nots: J. F. Bruijningh. Contract (Statement) of Gaspar Lopes Homem, Duarte Fernandes, Sebastiao Rodrigues de Leao, Pieter Beltgens, Jan Jansz Backer, Jacob Geurtsz, Pieter du Moulin