TY - GENERIC DO - 10.20944/preprints202002.0223.v1 UR - http://dx.doi.org/10.20944/preprints202002.0223.v1 TI - Gini and Entropy Based Spread Indexes for Primary Energy Consumption Efficiency and CO2 Emission T2 - Preprints AU - Takada, Hellinton H. AU - Ribeiro, Celma O. AU - Costa, Oswaldo L. V. AU - Stern, Julio M. PY - 2020 DA - 2020/02/16 PB - Preprints