FEIGE, Edgar L. Reflections on the Meaning and Measurement of Unobserved Economies: What do we really know about the “Shadow Economy”?. Journal of Tax Administration, [S. l.], v. 2, n. 1, p. 5–41, 2016. Disponível em: https://jota.website/jota/article/view/136. Acesso em: 3 dec. 2024.