VALKAUSKAS, Romualdas. Research the Development of Economic Conjuncture. Ekonomika, [S. l.], v. 47, p. 95–107, 1999. DOI: 10.15388/Ekon.1999.16607. Disponível em: https://www.journals.vu.lt/ekonomika/article/view/16607.. Acesso em: 1 may. 2024.