ФедороваЕ. А., ЗеленковЮ. А., ТкаченкоА. А., and ФедоровЮ. Ф. “Evaluating the Effectiveness of Companies Managing Pension Funds Based on DEA (Data Envelopment Analysis)”. Journal of Corporate Finance Research / Корпоративные Финансы | ISSN: 2073-0438, Vol. 11, no. 3, Oct. 2017, pp. 34-44, doi:10.17323/j.jcfr.2073-0438.11.3.2017.34-44.