TY  JOUR
TI  Security and diversification of external sources of oil supplies to the EU
KW  energy security; oil; import dependence; risks; diversification; Herfendal-Hirschman index; The EU; Russia.
JO  Journal of economic studies
AU  Razumnova, L.L.
PY  2019
IS  5
PB  INFRA-M Academic Publishing LLC.