RICHTER CR, FAKHRY B. Testing the Efficiency of the GIPS Sovereign Debt Markets using an Asymmetrical Volatility Test. J. Econ. Pol. Econ. [Internet]. 2016 Sep. 18 [cited 2024 Sep. 19];3(3):524-35. Available from: https://journals.econsciences.com/index.php/JEPE/article/view/977