Phillips FY (1997). “In Memoriam Abraham Charnes, 1917-1992.” Ann Oper Res 73: 389-391.

Picazo-Tadeo AJ and E Reig-Martinez (2006). “Agricultural Externalities and Environmental Regulation: Evaluating Good Practice in Citrus Production.” Appl Econ 38(11): 1327-1334.

Perelman S (1995). “R-and-D, Technological-Progress and Efficiency Change in Industrial Activities.” Review of Income and Wealth: 349-366.

Perez ED (1992). “Regional Variation in Vamcs Operative Efficiency.” J Medical Systems 1: 207-213.

Peristiani S (1999). “Comment on Fried, Lovell, and Yaisawarng.” J Banking and Finance 23(2-4): 387-390.

Perroni C (1999). “A Flexible, Globally Regular Representation of Convex Production Possibilities Frontiers.” JPA 12(2): 153-159.

Petersen NC (1990). “Data Envelopment Analysis on a Relaxed Set of Assumptions.” Management Science 3: 305-314.

Petersen NC (2001). “A Comment On: Lower Bound Restrictions on Intensities in Data Envelopment Analysis by Bouhnik et al.” JPA 16(3): 263-267.

Petersen NC and CAK Lovell (1996). “Editor’s Introduction to Special Issue on Efficiency and Frontier Analysis.” JPA 7: 87-98.

Petroni A and M Bevilacqua (2002). “Identifying Manufacturing Flexibility Best Practices in Small and Medium Enterprises.” Int J Oper Prod Man 22(8): 929-947.