Loi du 19 octobre 1972 sur les inventions: Dz.U 1972, Nr 43, poz. 272. Contemporary Central & East European Law, [S. l.], n. 1 (25), p. 67–82, 1975. Disponível em: https://czasopisma.inp.pan.pl/index.php/cceel/article/view/1247. Acesso em: 6 dec. 2025.