MCGOWAN, David. There’s no such thing as free software (And it’s a good thing, too). First Monday, [S. l.], 2005. DOI: 10.5210/fm.v0i0.1469. Disponível em: https://firstmonday.org/ojs/index.php/fm/article/view/1469. Acesso em: 25 sep. 2023.