Lovell CAK (1996). “Applying Efficiency Measurement Techniques to the Measurement of Productivity Change.” JPA 7(2-3): 329-340.

Los B and MP Timmer (2005). “The ‘Appropriate Technology’ Explanation of Productivity Growth Differentials: An Empirical Approach.” J Development Economics 77(2): 517-531.

Lotfi FH, GR Jahanshahloo and M Zohrehbandian (2004). “Estimation of Efficiency and Infinitesimals in Data Envelopment Analysis.” Mathematical and Computational Applications 9(2): 299-302.

Lothgren M (1997). “Generalized Stochastic Frontier Production Models.” Economics Letters 57: 255-259.

Lothgren M (1999). “Bootstrapping the Malmquist Productivity Index – a Simulation Study.” Appl Econ Letters 6(11): 707-710.

Lothgren M (2000). “On the Consistency of the DEA-Based Average Efficiency Bootstrap.” Appl Econ Letters 7(1): 53-57.

Lothgren M and M Tambour (1999). “Bootstrapping DEA-Based Efficiency Measures and Malmquist Productivity Indices. A Study of Swedish Eye-Care Service Provision.” Appl Econ 31(4): 417-425.

Lothgren M and M Tambour (1999). “Productivity and Customer Satisfaction in Swedish Pharmacies: A DEA Network Model.” EJOR 115(3): 449-458.

Lothgren M, M Tambour and C Rehnberg (1999). “Internal Markets and Health Care Efficiency: A Multiple-Output Stochastic Frontier Analysis.” Health Economics 8: 151-164.

Lotov AV (2003). “Computer Visualization of the Production Possibility Set in Data Envelopment Analysis.” Doklady Akademii Nauk 388(2): 171-174.