Bouhnik S, B Golany, S Hackman, U Passy and DV Analysis (2001). “Lower Bound Restrictions on Intensities in Data Envelopment.” JPA 16(3): 241-261.
Bouhnik S, B Golany, S Hackman, U Passy and DV Analysis (2001). “Lower Bound Restrictions on Intensities in Data Envelopment.” JPA 16(3): 241-261.