Aysan AF, Karakaya MM, Uyanik M. Panel stochastic frontier analysis of profitability and efficiency of Turkish banking sector in the post crisis era. JBEM [Internet]. 2011Nov.21 [cited 2024Oct.5];12(4):629-54. Available from: https://ijspm.vgtu.lt/index.php/JBEM/article/view/5057