ZHYZHKO, K. V. Development of multiplier method with using a post – crisis coefficient. Science and Transport Progress , [S. l.], n. 36, p. 240–247, 2011. DOI: 10.15802/stp2011/9330. Disponível em: https://stp.ust.edu.ua/article/view/9330. Acesso em: 5 may. 2024.