Wolszczak-Derlacz, Joanna. “Assessment of TFP in European and American Higher Education Institutions – Application of Malmquist Indices”. Technological and Economic Development of Economy 24, no. 2 (March 20, 2018): 467–488. Accessed November 24, 2024. https://btp.vgtu.lt/index.php/TEDE/article/view/102.