Richard W. Unger https://www.cepese.pt/portal.%26%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22/pt/publicacoes/autores/richard-w-unger https://www.cepese.pt/portal.%26%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22%22/@@site-logo/CEPESE+home.png Richard W. Unger Artigos Dutch Nautical Sciences in the Golden Age: the Portuguese Influence 2011