Drupal-Bibcite0<style face="normal" font="default" size="100%">Long-term equilibrium relationship analysis and energy-saving measures of metro energy consumption and its influencing factors based on cointegration theory and an ARDL model</style><style face="normal" font="default" size="100%">Long-term equilibrium relationship analysis and energy-saving measures of metro energy consumption and its influencing factors based on cointegration theory and an ARDL model</style>