Copyright

A Portuguese author of a writing published by printing, lithography or by any other similar method, within the Portuguese territory, enjoys during his lifetime, the copyright and the exclusive right to reproduce and negotiate his work. § 1 - The authors of any writings have, however, right to cite each other reciprocally, the articles, or passages, for the furtherance of their purpose, provided they indicate the author, the book, or the periodical to which the citations or articles belong. § 2 - The articles published originally in the periodicals, or as part of any work or collection, may be printed by the authors, there being no stipulation to the contrary.