TY JOUR TI Development of the management concept in the 2000s and prospects for their use in modern crisis conditions KW development KW management concepts KW 2000s KW prospects KW use KW modern conditions JO Journal of Management Studies AU Tebekin, A.V. AU Tebekin, P.A. AU Egorova, A.A. PY 2020 IS 6 PB INFRA-M Academic Publishing LLC.