%0 Journal Article %A Sarkar, Subhadip %T Construction of Pseudo CRS frontier for a negative data using RTS model of Allahyar & A modified multiplier BCC model %J RAIRO. Operations Research %D 2021 %P S1585-S1603 %V 55 %I EDP-Sciences %U https://www.numdam.org/articles/10.1051/ro/2020039/ %R 10.1051/ro/2020039 %G en %F RO_2021__55_S1_S1585_0