SCHMIDT, Johannes F.K. Niklas Luhmann’s Card Index: The Fabrication of Serendipity. Sociologica, [S. l.], v. 12, n. 1, p. 53–60, 2018. DOI: 10.6092/issn.1971-8853/8350. Disponível em: https://sociologica.unibo.it/article/view/8350. Acesso em: 3 dec. 2024.