CALLAGHAN, C. W. R&D Failure and Second Generation R&D: New Potentialities. Mediterranean Journal of Social Sciences, [S. l.], v. 5, n. 3, p. 11, 2014. Disponível em: https://www.richtmann.org/journal/index.php/mjss/article/view/2111. Acesso em: 22 mar. 2023.