Avrutskaya, S. и Маричева, Е. (2021) «Testing Russian Stock Market Efficiency Using Event Studies: Impact of Credit Ratings Changes», Journal of Corporate Finance Research / Корпоративные Финансы | ISSN: 2073-0438, 15(2), сс. 42-54. doi: 10.17323/j.jcfr.2073-0438.15.2.2021.42-54.