VALKAUSKAS, Romualdas. Statistical Identical the Change in the Economical Situation. Ekonomika, [S. l.], v. 64, p. 158–164, 2003. DOI: 10.15388/Ekon.2003.17332. Disponível em: https://www.zurnalai.vu.lt/ekonomika/article/view/17332. Acesso em: 3 may. 2025.