Lathgren M and M Tambour (1999). “Bootstrapping the Data Envelopment Analysis Malmquist Productivity Index.” Appl Econ 31(4): 417-425.

Lathgren M and M Tambour (1999). “Testing Scale Efficiency in DEA Models: A Bootstrapping Approach.” Appl Econ 31(10): 1231-1237.

Latruffe L, K Balcombe, S Davidova and K Zawalinska (2004). “Determinants of Technical Efficiency of Crop and Livestock Farms in Poland.” Appl Econ 36(12): 1255-1263.

Latruffe L, K Balcombe, S Davidova and K Zawalinska (2005). “Technical and Scale Efficiency of Crop and Livestock Farms in Poland: Does Specialization Matter?” Agricultural Economics 32(3): 281-296.

Land KC, KI Spenner, OO Suhomlinova and D Jones (1997). “Strong Legacies and Weak Markets: Bulgarian State-Owned Enterprises During Early Transition.” American Sociological Review 63(4): 599-617.

Lang G and P Welzel (1998). “Technology and Cost Efficiency in Universal Banking a ‘Thick Frontier’ -Analysis of the German Banking Industry.” JPA 10(1): 63-84.

Lang JR and PA Golden (1989). “Evaluating the Efficiency of Sbdcs with Data Envelopment Analysis: A Longitudinal Approach.” J Small Business Management 27(2): 42-49.

Lang P, OR Yolalan and O Kettani (1995). “Controlled Envelopment by Face Extension in DEA.” JORS 46(4): 473-491.

Lansink AO, K Pietola and S Backman (2002). “Effciency and Productivity of Conventional and Organic Farms in Finland 1994-1997.” European Review of Agricultural Economic 29(1): 51-65.

Lansink AO and S Reinhard (2004). “Investigating Technical Efficiency and Potential Technological Change in Dutch Pig Farming.” Agricultural Systems 79(3): 353-367.