SELL, Friedrich L. On the trail of the intangible: a theoretical and empirical investigation of innovations and patents in Germany in the years 2006-2019. International Entrepreneurship Review, Poland, v. 8, n. 1, p. 47–64, 2022. DOI: 10.15678/IER.2022.0801.04. Disponível em: https://ier.uek.krakow.pl/index.php/pm/article/view/2064.. Acesso em: 13 dec. 2024.