Weak disposability in nonparametric production analysis: A new taxonomy of reference technology sets. - Manh D. Pham; Valentin Zelenyuk (Eur. J. Oper. Res., 2019)

Statistical Inference for Aggregation of Malmquist Productivity Indices. - Manh D. Pham; Léopold Simar; Valentin Zelenyuk (Oper. Res., 2024)