By Aeroplane to Pygmyland: Revisiting the 1926 Dutch and American Expedition to New Guinea - This online publication, By Aeroplane to Pygmyland: Revisiting the 1926 Dutch and American Expedition to New Guinea, aims to “revisit” a historically important scientific expedition from today’s perspective of 80 years later. - http://www.sil.si.edu/expeditions/1926/
Search for New Guinea's Boundaries - Full text of the 1962 book by Paul W. van der Veur. - http://www.papuaweb.org/dlib/bk/veur1/_toc.html
The Discovery of New Guinea - Illustrations, facsimile maps and text taken from George Collingridge's book, The First Discovery of Australia and New Guinea. - http://www.papuaweb.org/gb/peta/sejarah/collingridge/index.html
'De Papoea': What's in a Name? - A 2002 article exploring the history of the name Papoea by Anton Ploeg. - http://www.papuaweb.org/dlib/jr/ploeg-2002-papoea.pdf