Lansink AO and E Silva (2003). “CO2 and Energy Efficiency of Different Heating Technologies in the Dutch Glasshouse Industry.” Environmental and Resource Economics 24(4): 395-407.

Lall V and S Teyarachakul (2006). “Enterprise Resource Planning (Erp) System Selection: A Data Envelopment Anaysis (DEA) Approach.” Journal for Computer Information Systems 47(1): 123-127.

Lambert DK (1999). “Scale and the Malmquist Productivity Index.” Appl Econ Letters 6(9): 593-596.

Lambert DK, D Dichev and K Raffiee (1993). “Ownership and Sources of Inefficiency in the Provision of Water Services.” Water Resources Research 2: 1573-1578.

Lan LW and ETJ Lin (2005). “Measuring Railway Performance with Adjustment of Environmental Effects, Data Noise and Slacks.” TRANSPORTMETRICA 1(2): 161-189.

Land A, MF Shutler and HA Kirthisingha (1990). “Branch Operation. An Investigation Using DEA and Regression.? in Proceedings of IFORS International Conference on Operational Research, Pergamon Press plc, Oxford, UK: 261.

Land KC, CAK Lovell and S Thore (1992). “Productive Efficiency under Capitalism and State Socialism – the Chance-Constrained Programming Approach.” Public Finance-Finances Publiques 4: 109-121.

Land KC, CAK Lovell and S Thore (1993). “Chance-Constrained Data Envelopment Analysis.” Managerial and Decision Economics 14(6): 541-554.

Land KC, CAK Lovell and S Thore (1994). “Productive Efficiency under Capitalism and State Socialism – an Empirical Inquiry Using Chance-Constrained Data Envelopment Analysis.” Technological Forecasting and Social Change 4: 139-152.

Lachaal L, B Dhehibi, ALI Chebil and B Karray (2004). “Technical Efficiency Measures and its Determinants for Olive Producing Farms in Tunisia.” in Emrouznejad A and V Podinovski (eds.) Proceedings of DEA2004, Birmingham, UK: 315.